{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x84454b31f53d55f8d99fdb217dcc013e1e45464a7a436a938cdf8662a5088816",
    "signature": "0xea59e91993a296da31b9a70470d89e0b856a25c59f6553cea56cfcaa333941226fb1c1bf11ddbcfc7ce608e0369906fa658070ca217328ecbfa1c31d69e29dc81b",
    "signer": "0x1Cd621cc0fa2899b64374Ba9EA39dE50a450d6f9",
    "userId": "124826044"
  }
}