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ValidatorSignWithdrawalAction payload - Withdrawal Signatures

Decode Hyperliquid `ValidatorSignWithdrawalAction` payloads for withdrawal signatures, returned through Dwellir's read-only L1 gRPC API.

Read-only action reference

Dwellir's Hyperliquid gRPC API returns this decoded action payload through StreamBlocks and GetBlock. It does not submit or execute this action. Submit supported user write actions through Hyperliquid's native POST /exchange endpoint.

The decoded ValidatorSignWithdrawalAction payload records a validator signature that authorizes an external bridge withdrawal.

Sample Data

JSON
{
  "signature": {
    "r": "0x62a3295228b569f9a08d3776a12bbb2bd56e75153c3dadefda97e84c1be87097",
    "s": "0x5b7d385d6e32cbb89ed5fad01877ca78bf562e1333ae16fb1bcb7eca946ed7c6",
    "v": 28
  },
  "action": {
    "type": "ValidatorSignWithdrawalAction",
    "user": "0x6275c773fa0d1fd29e39322afee475827171c26b",
    "destination": "0xc2c9981b9061e533affaaf03105c561154f1ec84",
    "usd": 15494002,
    "nonce": 1768146916924000,
    "signature": {
      "r": "0x1e63066eff19a658f69813bf33d081f856846c684e1488b1d021ec5419ba2f0c",
      "s": "0x8a56ce8e4ff9f0115fdef290e6ea2cc4364d9d0faa406a255a8f13df936a16d",
      "v": 28
    }
  },
  "nonce": 1768146734592
}

View this transaction on Hypurrscan

Field Reference

Action Fields

FieldTypeDescription
typestringAlways "ValidatorSignWithdrawalAction"
userstringUser requesting withdrawal
destinationstringExternal destination address
noncenumberWithdrawal nonce
usdnumberAmount in raw units

Use Cases

Withdrawal Authorization Tracking

Monitor validator withdrawal signatures:

Python
def process_ValidatorSignWithdrawalAction(action):
    user = action.get('user')
    amount = action.get('usd') / 1_000_000
    print(f"Withdrawal signed: ${amount:,.2f} for {user[:10]}...")