{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x58755ef63c946313e6d150d5ffb790f6bebf428478b04c2fc0787d10b8bdab67",
    "signature": "0x8c327a933ef8147d0c439249c1e320943d7c64adc289442d8117a8dbdb94f31e15ba1d1fd9d62602f818df7e555f01c47638a61140b61aa912cf8059569aa4be1b",
    "signer": "0x6a939667Ffb59F075c756457A3C018C9E135ABf3",
    "userId": "991468454"
  }
}