{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x3256bd2d0b1984e7df4fa525017ad9ba48470760\"}",
    "nonce": "0x894c686c76e2912b850821eb086e48f66129c0081eac587582b242bc432e9cef",
    "signature": "0x7dccde1aa0c1c760894449a027b2ba6fea6d48aaae09d6787f33544420c06b393d3bc6e9aab44eec6fe441a75e0a749bd1ed32db01c45548c16a130c4c1ffe361c",
    "signer": "0x5A47cACb9c00FDfD2139C01F0E0efFe5429f79E9",
    "userId": "565083621"
  }
}