create a signing requestCopy Pagepost https://example.com/signaturescreate a signature request to sign the payload hashBody ParamsfinIdstringrequiredlength between 64 and 66Existing owner hex representation of a secp256k1 public key 33 bytes compressedtemplaterequiredhashListEIP712hashListTemplate objectreferenceexecutionPlanRefExecutionPlanReference objectHeadersIdempotency-Keystringhex encoding of a 32-byte payload consisting of 24 random bytes + 8-byte epoch timestamp (seconds)Responses 200successful operation 202Operation is pending 400Bad Request 401Unauthorized 403Forbidden 404Not Found 405Method Not Allowed 409Conflict 415Unsupported Media Type 500Internal Server Error 502Bad Gateway 503Service Unavailable 504Gateway TimeoutUpdated 29 days ago