diff --git a/common/protob/messages-ethereum-eip712.proto b/common/protob/messages-ethereum-eip712.proto
index 48b2fb08aa..7fc710257c 100644
--- a/common/protob/messages-ethereum-eip712.proto
+++ b/common/protob/messages-ethereum-eip712.proto
@@ -23,6 +23,7 @@ message EthereumSignTypedData {
     repeated uint32 address_n = 1;                       // BIP-32 path to derive the key from master node
     required string primary_type = 2;                    // name of the root message struct
     optional bool metamask_v4_compat = 3 [default=true]; // use MetaMask v4 (see https://github.com/MetaMask/eth-sig-util/issues/106)
+    optional bytes encoded_network = 4;                  // encoded Ethereum network, see protocol.md for details
 }
 
 /**
diff --git a/common/protob/messages-ethereum.proto b/common/protob/messages-ethereum.proto
index 8ac7d768e1..e250ce026c 100644
--- a/common/protob/messages-ethereum.proto
+++ b/common/protob/messages-ethereum.proto
@@ -15,8 +15,9 @@ import "messages-common.proto";
  * @next Failure
  */
 message EthereumGetPublicKey {
-    repeated uint32 address_n = 1;                                      // BIP-32 path to derive the key from master node
-    optional bool show_display = 2;                                     // optionally show on display before sending the result
+    repeated uint32 address_n = 1;      // BIP-32 path to derive the key from master node
+    optional bool show_display = 2;     // optionally show on display before sending the result
+    optional bytes encoded_network = 3; // encoded Ethereum network, see protocol.md for details
 }
 
 /**
@@ -35,8 +36,9 @@ message EthereumPublicKey {
  * @next Failure
  */
 message EthereumGetAddress {
-    repeated uint32 address_n = 1;  // BIP-32 path to derive the key from master node
-    optional bool show_display = 2; // optionally show on display before sending the result
+    repeated uint32 address_n = 1;      // BIP-32 path to derive the key from master node
+    optional bool show_display = 2;     // optionally show on display before sending the result
+    optional bytes encoded_network = 3; // encoded Ethereum network, see protocol.md for details
 }
 
 /**
@@ -48,6 +50,48 @@ message EthereumAddress {
     optional string address = 2;                       // Ethereum address as hex-encoded string
 }
 
+/**
+ * Ethereum definitions type enum.
+ * Used to check the encoded EthereumNetworkInfo and/or EthereumTokenInfo message.
+ */
+enum EthereumDefinitionType {
+    NETWORK = 0;
+    TOKEN = 1;
+}
+
+/**
+ * Ethereum network definition. Used to (de)serialize the definition.
+ * @embed
+ */
+message EthereumNetworkInfo {
+    required uint64 chain_id = 1;
+    required uint64 slip44 = 2;
+    required string shortcut = 3;
+    required string name = 4;
+    required bool rskip60 = 5;
+}
+
+/**
+ * Ethereum token definition. Used to (de)serialize the definition.
+ * @embed
+ */
+message EthereumTokenInfo {
+    required string symbol = 1;
+    required uint32 decimals = 2;
+    required bytes address = 3;
+    required uint64 chain_id = 4;
+    required string name = 5;
+}
+
+/**
+ * Contains an encoded Ethereum network and/or token definition. See protocol.md for details.
+ * @embed
+ */
+message EthereumEncodedDefinitions {
+    optional bytes encoded_network = 1; // encoded Ethereum network
+    optional bytes encoded_token = 2;   // encoded Ethereum token
+}
+
 /**
  * Request: Ask device to sign transaction
  * gas_price, gas_limit and chain_id must be provided and non-zero.
@@ -58,16 +102,17 @@ message EthereumAddress {
  * @next Failure
  */
 message EthereumSignTx {
-    repeated uint32 address_n = 1;                       // BIP-32 path to derive the key from master node
-    optional bytes nonce = 2 [default=''];               // <=256 bit unsigned big endian
-    required bytes gas_price = 3;                        // <=256 bit unsigned big endian (in wei)
-    required bytes gas_limit = 4;                        // <=256 bit unsigned big endian
-    optional string to = 11 [default=''];                // recipient address
-    optional bytes value = 6 [default=''];               // <=256 bit unsigned big endian (in wei)
-    optional bytes data_initial_chunk = 7 [default=''];  // The initial data chunk (<= 1024 bytes)
-    optional uint32 data_length = 8 [default=0];         // Length of transaction payload
-    required uint64 chain_id = 9;                        // Chain Id for EIP 155
-    optional uint32 tx_type = 10;                        // Used for Wanchain
+    repeated uint32 address_n = 1;                        // BIP-32 path to derive the key from master node
+    optional bytes nonce = 2 [default=''];                // <=256 bit unsigned big endian
+    required bytes gas_price = 3;                         // <=256 bit unsigned big endian (in wei)
+    required bytes gas_limit = 4;                         // <=256 bit unsigned big endian
+    optional string to = 11 [default=''];                 // recipient address
+    optional bytes value = 6 [default=''];                // <=256 bit unsigned big endian (in wei)
+    optional bytes data_initial_chunk = 7 [default=''];   // The initial data chunk (<= 1024 bytes)
+    optional uint32 data_length = 8 [default=0];          // Length of transaction payload
+    required uint64 chain_id = 9;                         // Chain Id for EIP 155
+    optional uint32 tx_type = 10;                         // Used for Wanchain
+    optional EthereumEncodedDefinitions definitions = 12; // network and/or token definitions for tx
 }
 
 /**
@@ -78,17 +123,18 @@ message EthereumSignTx {
  * @next Failure
  */
 message EthereumSignTxEIP1559 {
-    repeated uint32 address_n = 1;                       // BIP-32 path to derive the key from master node
-    required bytes nonce = 2;                            // <=256 bit unsigned big endian
-    required bytes max_gas_fee = 3;                      // <=256 bit unsigned big endian (in wei)
-    required bytes max_priority_fee = 4;                 // <=256 bit unsigned big endian (in wei)
-    required bytes gas_limit = 5;                        // <=256 bit unsigned big endian
-    optional string to = 6 [default=''];                 // recipient address
-    required bytes value = 7;                            // <=256 bit unsigned big endian (in wei)
-    optional bytes data_initial_chunk = 8 [default=''];  // The initial data chunk (<= 1024 bytes)
-    required uint32 data_length = 9;                     // Length of transaction payload
-    required uint64 chain_id = 10;                       // Chain Id for EIP 155
-    repeated EthereumAccessList access_list = 11;        // Access List
+    repeated uint32 address_n = 1;                        // BIP-32 path to derive the key from master node
+    required bytes nonce = 2;                             // <=256 bit unsigned big endian
+    required bytes max_gas_fee = 3;                       // <=256 bit unsigned big endian (in wei)
+    required bytes max_priority_fee = 4;                  // <=256 bit unsigned big endian (in wei)
+    required bytes gas_limit = 5;                         // <=256 bit unsigned big endian
+    optional string to = 6 [default=''];                  // recipient address
+    required bytes value = 7;                             // <=256 bit unsigned big endian (in wei)
+    optional bytes data_initial_chunk = 8 [default=''];   // The initial data chunk (<= 1024 bytes)
+    required uint32 data_length = 9;                      // Length of transaction payload
+    required uint64 chain_id = 10;                        // Chain Id for EIP 155
+    repeated EthereumAccessList access_list = 11;         // Access List
+    optional EthereumEncodedDefinitions definitions = 12; // network and/or token definitions for tx
 
     message EthereumAccessList {
         required string address = 1;
@@ -125,8 +171,10 @@ message EthereumTxAck {
  * @next Failure
  */
 message EthereumSignMessage {
-    repeated uint32 address_n = 1;  // BIP-32 path to derive the key from master node
-    required bytes message = 2;     // message to be signed
+    repeated uint32 address_n = 1;      // BIP-32 path to derive the key from master node
+    required bytes message = 2;         // message to be signed
+    // TODO: send also token to be able to verify that provided address belongs to this network??
+    optional bytes encoded_network = 3; // encoded Ethereum network, see protocol.md for details
 }
 
 /**
@@ -145,9 +193,11 @@ message EthereumMessageSignature {
  * @next Failure
  */
 message EthereumVerifyMessage {
-    required bytes signature = 2;   // signature to verify
-    required bytes message = 3;     // message to verify
-    required string address = 4;     // address to verify
+    required bytes signature = 2;       // signature to verify
+    required bytes message = 3;         // message to verify
+    required string address = 4;        // address to verify
+    // TODO: send also token to be able to verify that provided address belongs to this network??
+    optional bytes encoded_network = 5; // encoded Ethereum network, see protocol.md for details
 }
 
 /**
diff --git a/common/protob/protocol.md b/common/protob/protocol.md
index 82fff6c94b..45ecd8961c 100644
--- a/common/protob/protocol.md
+++ b/common/protob/protocol.md
@@ -20,6 +20,18 @@ Following packets has the following structure:
 |      0 |      1 | char[1]     | '?' magic constant                                                                     |
 |      1 |     63 | uint8_t[63] | following bytes of message encoded in Protocol Buffers (padded with zeroes if shorter) |
 
+## Ethereum network and token definitions
+Ethereum network and token definitions could be sent from host to device. Definitions are generated in our CI job and are provided
+on publicly accessible website - on `data.trezor.io`. To ensure, that the definitions send to device are genuine, every generated
+definition is signed and checked in FW.
+Every definition (network/token) is encoded and has special format:
+1. prefix:
+   1. part: format version of the definition (UTF-8 string `trzd` + version number, padded with zeroes if shorter, 8 bytes)
+   2. part: type of data (unsigned integer, 1 byte)
+   3. part: data version of the definition (unsigned integer, 4 bytes)
+2. payload: serialized form of protobuf message EthereumNetworkInfo and/or EthereumTokenInfo (N bytes)
+3. suffix: signature of prefix+payload (plain bits, 64 bytes)
+
 ## Adding new message
 
 To add new message to Trezor protocol follow these steps:
diff --git a/core/src/all_modules.py b/core/src/all_modules.py
index c40e665b27..50a7aa3b7f 100644
--- a/core/src/all_modules.py
+++ b/core/src/all_modules.py
@@ -383,6 +383,8 @@ if not utils.BITCOIN_ONLY:
     import trezor.enums.CardanoTxWitnessType
     trezor.enums.EthereumDataType
     import trezor.enums.EthereumDataType
+    trezor.enums.EthereumDefinitionType
+    import trezor.enums.EthereumDefinitionType
     trezor.enums.MoneroNetworkType
     import trezor.enums.MoneroNetworkType
     trezor.enums.NEMImportanceTransferMode
diff --git a/core/src/trezor/enums/EthereumDefinitionType.py b/core/src/trezor/enums/EthereumDefinitionType.py
new file mode 100644
index 0000000000..3876e08720
--- /dev/null
+++ b/core/src/trezor/enums/EthereumDefinitionType.py
@@ -0,0 +1,6 @@
+# Automatically generated by pb2py
+# fmt: off
+# isort:skip_file
+
+NETWORK = 0
+TOKEN = 1
diff --git a/core/src/trezor/enums/__init__.py b/core/src/trezor/enums/__init__.py
index 224a1374e0..d1f6370863 100644
--- a/core/src/trezor/enums/__init__.py
+++ b/core/src/trezor/enums/__init__.py
@@ -461,6 +461,10 @@ if TYPE_CHECKING:
         ARRAY = 7
         STRUCT = 8
 
+    class EthereumDefinitionType(IntEnum):
+        NETWORK = 0
+        TOKEN = 1
+
     class MoneroNetworkType(IntEnum):
         MAINNET = 0
         TESTNET = 1
diff --git a/core/src/trezor/messages.py b/core/src/trezor/messages.py
index 8963ea4cb9..b0a701e54d 100644
--- a/core/src/trezor/messages.py
+++ b/core/src/trezor/messages.py
@@ -38,6 +38,7 @@ if TYPE_CHECKING:
     from trezor.enums import DebugSwipeDirection  # noqa: F401
     from trezor.enums import DecredStakingSpendType  # noqa: F401
     from trezor.enums import EthereumDataType  # noqa: F401
+    from trezor.enums import EthereumDefinitionType  # noqa: F401
     from trezor.enums import FailureType  # noqa: F401
     from trezor.enums import InputScriptType  # noqa: F401
     from trezor.enums import MessageType  # noqa: F401
@@ -3367,6 +3368,7 @@ if TYPE_CHECKING:
         address_n: "list[int]"
         primary_type: "str"
         metamask_v4_compat: "bool"
+        encoded_network: "bytes | None"
 
         def __init__(
             self,
@@ -3374,6 +3376,7 @@ if TYPE_CHECKING:
             primary_type: "str",
             address_n: "list[int] | None" = None,
             metamask_v4_compat: "bool | None" = None,
+            encoded_network: "bytes | None" = None,
         ) -> None:
             pass
 
@@ -3476,12 +3479,14 @@ if TYPE_CHECKING:
     class EthereumGetPublicKey(protobuf.MessageType):
         address_n: "list[int]"
         show_display: "bool | None"
+        encoded_network: "bytes | None"
 
         def __init__(
             self,
             *,
             address_n: "list[int] | None" = None,
             show_display: "bool | None" = None,
+            encoded_network: "bytes | None" = None,
         ) -> None:
             pass
 
@@ -3508,12 +3513,14 @@ if TYPE_CHECKING:
     class EthereumGetAddress(protobuf.MessageType):
         address_n: "list[int]"
         show_display: "bool | None"
+        encoded_network: "bytes | None"
 
         def __init__(
             self,
             *,
             address_n: "list[int] | None" = None,
             show_display: "bool | None" = None,
+            encoded_network: "bytes | None" = None,
         ) -> None:
             pass
 
@@ -3535,6 +3542,66 @@ if TYPE_CHECKING:
         def is_type_of(cls, msg: Any) -> TypeGuard["EthereumAddress"]:
             return isinstance(msg, cls)
 
+    class EthereumNetworkInfo(protobuf.MessageType):
+        chain_id: "int"
+        slip44: "int"
+        shortcut: "str"
+        name: "str"
+        rskip60: "bool"
+
+        def __init__(
+            self,
+            *,
+            chain_id: "int",
+            slip44: "int",
+            shortcut: "str",
+            name: "str",
+            rskip60: "bool",
+        ) -> None:
+            pass
+
+        @classmethod
+        def is_type_of(cls, msg: protobuf.MessageType) -> TypeGuard["EthereumNetworkInfo"]:
+            return isinstance(msg, cls)
+
+    class EthereumTokenInfo(protobuf.MessageType):
+        symbol: "str"
+        decimals: "int"
+        address: "bytes"
+        chain_id: "int"
+        name: "str"
+
+        def __init__(
+            self,
+            *,
+            symbol: "str",
+            decimals: "int",
+            address: "bytes",
+            chain_id: "int",
+            name: "str",
+        ) -> None:
+            pass
+
+        @classmethod
+        def is_type_of(cls, msg: protobuf.MessageType) -> TypeGuard["EthereumTokenInfo"]:
+            return isinstance(msg, cls)
+
+    class EthereumEncodedDefinitions(protobuf.MessageType):
+        encoded_network: "bytes | None"
+        encoded_token: "bytes | None"
+
+        def __init__(
+            self,
+            *,
+            encoded_network: "bytes | None" = None,
+            encoded_token: "bytes | None" = None,
+        ) -> None:
+            pass
+
+        @classmethod
+        def is_type_of(cls, msg: protobuf.MessageType) -> TypeGuard["EthereumEncodedDefinitions"]:
+            return isinstance(msg, cls)
+
     class EthereumSignTx(protobuf.MessageType):
         address_n: "list[int]"
         nonce: "bytes"
@@ -3546,6 +3613,7 @@ if TYPE_CHECKING:
         data_length: "int"
         chain_id: "int"
         tx_type: "int | None"
+        definitions: "EthereumEncodedDefinitions | None"
 
         def __init__(
             self,
@@ -3560,6 +3628,7 @@ if TYPE_CHECKING:
             data_initial_chunk: "bytes | None" = None,
             data_length: "int | None" = None,
             tx_type: "int | None" = None,
+            definitions: "EthereumEncodedDefinitions | None" = None,
         ) -> None:
             pass
 
@@ -3579,6 +3648,7 @@ if TYPE_CHECKING:
         data_length: "int"
         chain_id: "int"
         access_list: "list[EthereumAccessList]"
+        definitions: "EthereumEncodedDefinitions | None"
 
         def __init__(
             self,
@@ -3594,6 +3664,7 @@ if TYPE_CHECKING:
             access_list: "list[EthereumAccessList] | None" = None,
             to: "str | None" = None,
             data_initial_chunk: "bytes | None" = None,
+            definitions: "EthereumEncodedDefinitions | None" = None,
         ) -> None:
             pass
 
@@ -3638,12 +3709,14 @@ if TYPE_CHECKING:
     class EthereumSignMessage(protobuf.MessageType):
         address_n: "list[int]"
         message: "bytes"
+        encoded_network: "bytes | None"
 
         def __init__(
             self,
             *,
             message: "bytes",
             address_n: "list[int] | None" = None,
+            encoded_network: "bytes | None" = None,
         ) -> None:
             pass
 
@@ -3671,6 +3744,7 @@ if TYPE_CHECKING:
         signature: "bytes"
         message: "bytes"
         address: "str"
+        encoded_network: "bytes | None"
 
         def __init__(
             self,
@@ -3678,6 +3752,7 @@ if TYPE_CHECKING:
             signature: "bytes",
             message: "bytes",
             address: "str",
+            encoded_network: "bytes | None" = None,
         ) -> None:
             pass
 
diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py
index a060c6c308..dfc37319a0 100644
--- a/python/src/trezorlib/messages.py
+++ b/python/src/trezorlib/messages.py
@@ -498,6 +498,11 @@ class EthereumDataType(IntEnum):
     STRUCT = 8
 
 
+class EthereumDefinitionType(IntEnum):
+    NETWORK = 0
+    TOKEN = 1
+
+
 class MoneroNetworkType(IntEnum):
     MAINNET = 0
     TESTNET = 1
@@ -4544,6 +4549,7 @@ class EthereumSignTypedData(protobuf.MessageType):
         1: protobuf.Field("address_n", "uint32", repeated=True, required=False, default=None),
         2: protobuf.Field("primary_type", "string", repeated=False, required=True),
         3: protobuf.Field("metamask_v4_compat", "bool", repeated=False, required=False, default=True),
+        4: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
     }
 
     def __init__(
@@ -4552,10 +4558,12 @@ class EthereumSignTypedData(protobuf.MessageType):
         primary_type: "str",
         address_n: Optional[Sequence["int"]] = None,
         metamask_v4_compat: Optional["bool"] = True,
+        encoded_network: Optional["bytes"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.primary_type = primary_type
         self.metamask_v4_compat = metamask_v4_compat
+        self.encoded_network = encoded_network
 
 
 class EthereumTypedDataStructRequest(protobuf.MessageType):
@@ -4659,6 +4667,7 @@ class EthereumGetPublicKey(protobuf.MessageType):
     FIELDS = {
         1: protobuf.Field("address_n", "uint32", repeated=True, required=False, default=None),
         2: protobuf.Field("show_display", "bool", repeated=False, required=False, default=None),
+        3: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
     }
 
     def __init__(
@@ -4666,9 +4675,11 @@ class EthereumGetPublicKey(protobuf.MessageType):
         *,
         address_n: Optional[Sequence["int"]] = None,
         show_display: Optional["bool"] = None,
+        encoded_network: Optional["bytes"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.show_display = show_display
+        self.encoded_network = encoded_network
 
 
 class EthereumPublicKey(protobuf.MessageType):
@@ -4693,6 +4704,7 @@ class EthereumGetAddress(protobuf.MessageType):
     FIELDS = {
         1: protobuf.Field("address_n", "uint32", repeated=True, required=False, default=None),
         2: protobuf.Field("show_display", "bool", repeated=False, required=False, default=None),
+        3: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
     }
 
     def __init__(
@@ -4700,9 +4712,11 @@ class EthereumGetAddress(protobuf.MessageType):
         *,
         address_n: Optional[Sequence["int"]] = None,
         show_display: Optional["bool"] = None,
+        encoded_network: Optional["bytes"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.show_display = show_display
+        self.encoded_network = encoded_network
 
 
 class EthereumAddress(protobuf.MessageType):
@@ -4722,6 +4736,75 @@ class EthereumAddress(protobuf.MessageType):
         self.address = address
 
 
+class EthereumNetworkInfo(protobuf.MessageType):
+    MESSAGE_WIRE_TYPE = None
+    FIELDS = {
+        1: protobuf.Field("chain_id", "uint64", repeated=False, required=True),
+        2: protobuf.Field("slip44", "uint64", repeated=False, required=True),
+        3: protobuf.Field("shortcut", "string", repeated=False, required=True),
+        4: protobuf.Field("name", "string", repeated=False, required=True),
+        5: protobuf.Field("rskip60", "bool", repeated=False, required=True),
+    }
+
+    def __init__(
+        self,
+        *,
+        chain_id: "int",
+        slip44: "int",
+        shortcut: "str",
+        name: "str",
+        rskip60: "bool",
+    ) -> None:
+        self.chain_id = chain_id
+        self.slip44 = slip44
+        self.shortcut = shortcut
+        self.name = name
+        self.rskip60 = rskip60
+
+
+class EthereumTokenInfo(protobuf.MessageType):
+    MESSAGE_WIRE_TYPE = None
+    FIELDS = {
+        1: protobuf.Field("symbol", "string", repeated=False, required=True),
+        2: protobuf.Field("decimals", "uint32", repeated=False, required=True),
+        3: protobuf.Field("address", "bytes", repeated=False, required=True),
+        4: protobuf.Field("chain_id", "uint64", repeated=False, required=True),
+        5: protobuf.Field("name", "string", repeated=False, required=True),
+    }
+
+    def __init__(
+        self,
+        *,
+        symbol: "str",
+        decimals: "int",
+        address: "bytes",
+        chain_id: "int",
+        name: "str",
+    ) -> None:
+        self.symbol = symbol
+        self.decimals = decimals
+        self.address = address
+        self.chain_id = chain_id
+        self.name = name
+
+
+class EthereumEncodedDefinitions(protobuf.MessageType):
+    MESSAGE_WIRE_TYPE = None
+    FIELDS = {
+        1: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
+        2: protobuf.Field("encoded_token", "bytes", repeated=False, required=False),
+    }
+
+    def __init__(
+        self,
+        *,
+        encoded_network: Optional["bytes"] = None,
+        encoded_token: Optional["bytes"] = None,
+    ) -> None:
+        self.encoded_network = encoded_network
+        self.encoded_token = encoded_token
+
+
 class EthereumSignTx(protobuf.MessageType):
     MESSAGE_WIRE_TYPE = 58
     FIELDS = {
@@ -4735,6 +4818,7 @@ class EthereumSignTx(protobuf.MessageType):
         8: protobuf.Field("data_length", "uint32", repeated=False, required=False, default=0),
         9: protobuf.Field("chain_id", "uint64", repeated=False, required=True),
         10: protobuf.Field("tx_type", "uint32", repeated=False, required=False, default=None),
+        12: protobuf.Field("definitions", "EthereumEncodedDefinitions", repeated=False, required=False),
     }
 
     def __init__(
@@ -4750,6 +4834,7 @@ class EthereumSignTx(protobuf.MessageType):
         data_initial_chunk: Optional["bytes"] = b'',
         data_length: Optional["int"] = 0,
         tx_type: Optional["int"] = None,
+        definitions: Optional["EthereumEncodedDefinitions"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.gas_price = gas_price
@@ -4761,6 +4846,7 @@ class EthereumSignTx(protobuf.MessageType):
         self.data_initial_chunk = data_initial_chunk
         self.data_length = data_length
         self.tx_type = tx_type
+        self.definitions = definitions
 
 
 class EthereumSignTxEIP1559(protobuf.MessageType):
@@ -4777,6 +4863,7 @@ class EthereumSignTxEIP1559(protobuf.MessageType):
         9: protobuf.Field("data_length", "uint32", repeated=False, required=True),
         10: protobuf.Field("chain_id", "uint64", repeated=False, required=True),
         11: protobuf.Field("access_list", "EthereumAccessList", repeated=True, required=False, default=None),
+        12: protobuf.Field("definitions", "EthereumEncodedDefinitions", repeated=False, required=False),
     }
 
     def __init__(
@@ -4793,6 +4880,7 @@ class EthereumSignTxEIP1559(protobuf.MessageType):
         access_list: Optional[Sequence["EthereumAccessList"]] = None,
         to: Optional["str"] = '',
         data_initial_chunk: Optional["bytes"] = b'',
+        definitions: Optional["EthereumEncodedDefinitions"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.access_list: Sequence["EthereumAccessList"] = access_list if access_list is not None else []
@@ -4805,6 +4893,7 @@ class EthereumSignTxEIP1559(protobuf.MessageType):
         self.chain_id = chain_id
         self.to = to
         self.data_initial_chunk = data_initial_chunk
+        self.definitions = definitions
 
 
 class EthereumTxRequest(protobuf.MessageType):
@@ -4849,6 +4938,7 @@ class EthereumSignMessage(protobuf.MessageType):
     FIELDS = {
         1: protobuf.Field("address_n", "uint32", repeated=True, required=False, default=None),
         2: protobuf.Field("message", "bytes", repeated=False, required=True),
+        3: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
     }
 
     def __init__(
@@ -4856,9 +4946,11 @@ class EthereumSignMessage(protobuf.MessageType):
         *,
         message: "bytes",
         address_n: Optional[Sequence["int"]] = None,
+        encoded_network: Optional["bytes"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.message = message
+        self.encoded_network = encoded_network
 
 
 class EthereumMessageSignature(protobuf.MessageType):
@@ -4884,6 +4976,7 @@ class EthereumVerifyMessage(protobuf.MessageType):
         2: protobuf.Field("signature", "bytes", repeated=False, required=True),
         3: protobuf.Field("message", "bytes", repeated=False, required=True),
         4: protobuf.Field("address", "string", repeated=False, required=True),
+        5: protobuf.Field("encoded_network", "bytes", repeated=False, required=False),
     }
 
     def __init__(
@@ -4892,10 +4985,12 @@ class EthereumVerifyMessage(protobuf.MessageType):
         signature: "bytes",
         message: "bytes",
         address: "str",
+        encoded_network: Optional["bytes"] = None,
     ) -> None:
         self.signature = signature
         self.message = message
         self.address = address
+        self.encoded_network = encoded_network
 
 
 class EthereumSignTypedHash(protobuf.MessageType):