{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x3cc0c71647e0d83386fcf370c3155dec5c15d0c0b94b8cff25a646e1ae2fd303",
    "signature": "0xa5249f7d9aebe8270f4560bddcfe12beb1e32f5aa1503fb5794e0be6173421a91583558e062c32fa1ce15cb077c8b5dbd2144d50ddd7ee1b06b72413b6bd648f1b",
    "signer": "0x9f6b3d49c01C5Ea54E35753BAE80d18B1cAc10F2",
    "userId": "63937888"
  }
}