| address required | string |
| nonce required | string |
| reason required | string |
{- "address": "0x1234567890abcdef1234567890abcdef12345678",
- "nonce": "123456",
- "reason": "Requested refund due to transaction error."
}| signMessage | string |
| signature | string |
{- "signMessage": "{\"domain\":{\"name\":\"vessel\",\"version\":\"1.0\",\"chainId\":31336,\"verifyingContract\":\"0x1C402fc41d2463c1b731F00Fb6c58E4f5F48f26D\"},\"message\":{\"action\":\"FAST_WITHDRAW\",\"recipientAddress\":\"0xaecc39a91f99b93c5bb6937702f35692d3dc098f\",\"assetAddress\":\"0x115d7113e5df03fd95242ab0183d343ff1ed13b3\",\"assetAmount\":12345670,\"feeAmount\":1000000,\"nonce\":1731315350613,\"expireTimestampSec\":1731401750},\"primaryType\":\"FastWithdraw\",\"types\":{\"EIP712Domain\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"version\",\"type\":\"string\"},{\"name\":\"chainId\",\"type\":\"uint256\"},{\"name\":\"verifyingContract\",\"type\":\"address\"}],\"FastWithdraw\":[{\"name\":\"action\",\"type\":\"string\"},{\"name\":\"recipientAddress\",\"type\":\"address\"},{\"name\":\"assetAddress\",\"type\":\"address\"},{\"name\":\"assetAmount\",\"type\":\"uint256\"},{\"name\":\"feeAmount\",\"type\":\"uint256\"},{\"name\":\"nonce\",\"type\":\"uint256\"},{\"name\":\"expireTimestampSec\",\"type\":\"uint256\"}]}}",
- "signature": "0x4031300a3f349bb6e4014f0334170f8f7effab390ab72d3e86102c32843a1ca061f43251bfe991f5acc14e485114b78b029192276e30dadcc16aea17dcad8f161b"
}