{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x190d6459f93939b18b14c0075886382bfc22b01012decd1930b6c08f9564f27f",
    "signature": "0x5a78b88142fdc238c1e1fd0cf7b0d33e3065d7389b7bec2a6ebe59c03b89fb8d33a9ea17fefe16d469a8d78132a248c16cae7ed48408b4033fff13a89dd571781c",
    "signer": "0x7c3f76681535353106d8a3Be2b242E4149ADf29a",
    "userId": "144257587"
  }
}