{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xb42efd634c5d12faa334015a187fc364b39af5941c2ba1f20b750debbf787696",
    "signature": "0x272c31797a6ea45f2cf2b713614946333269dc84a98a9ab3054f75487df5b4db0f57f4c9b67f1e83316df40104d9d71acf9462e7c7943233786db989480cc47c1b",
    "signer": "0xb4F05aA28f22a161d82fD130e124D5F0793C6410",
    "userId": "20832183"
  }
}