{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "1792687252950466175",
    "signature": "0x7d667c54c6336b34a171b3d56c1e90d7cd690666e1b6809a7c66642ba62cdf523e97efbc914fe09ab4aadc21bce18c1d1ff7db4cf7b4f505f6764b6a3f33b1521b",
    "signer": "0x578c9D33c272444da908fDE50Ccf8ef08bf301Ab",
    "userId": "862582545"
  }
}