# FVyBuildSignatureRequestVariant

| VariantType | [EVyBuildSignatureRequestType](https://sdk.venly.io/sdk-reference/ue5-sdk-v3/object-references/wallet/enum/evybuildsignaturerequesttype)           | The cryptographic signature method to be used: - \`MESSAGE\`: Plain message signing (personal\_sign) - \`EIP712\`: Structured data signing following EIP-712 standard for typed data |
| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Eip712      | [FVyOptBuildEip712SignatureRequestDto](https://sdk.venly.io/sdk-reference/ue5-sdk-v3/object-references/wallet/fvybuildeip712signaturerequestdto)   |                                                                                                                                                                                      |
| Message     | [FVyOptBuildMessageSignatureRequestDto](https://sdk.venly.io/sdk-reference/ue5-sdk-v3/object-references/wallet/fvybuildmessagesignaturerequestdto) |                                                                                                                                                                                      |