{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x55ebdc361cc6c33a8dbcca030ffa21d1b7f55b64c8b679a9bfe21d2df89112e6",
    "signature": "0x4d62f271ac2e9ab2a573f3d062931523bca2a5b8e6e6f10737ddadd1e21c815436c7274c7902b35c358d06709c568f1be4942a719c0ee7d084b95d41c45380811c",
    "signer": "0xA2aC1907e7596392a5411b195689F8B040597292",
    "userId": "342432160"
  }
}