{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc115b5d31a32e4868cfacd3c6747fc8e0479a278\"}",
    "nonce": "0x1829e0f4c1e53b559a9e3b3bb23234783565bb416cbdb81e392d55a4a397b60c",
    "signature": "0x973c3ea495f37e3bc0f9418d61732d596eb0d12a85d669a2101254d460ece513610441e25c734d736d2ef24d66cc8f6866b3010691c97786b49e4263d213d4341c",
    "signer": "0xe14C9af01a3938E3eB6a901b161Fae55D84fF05d",
    "userId": "158110"
  }
}