{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xd838dff32aa726701cf08e186c16c6e3d2913aab98c84cf0b1db593ae3719907",
    "signature": "0x3cb8a49057b09437a9034b9d2e37df31cbb98dc9f28b6a2de73844b37a58281c2bcc116a1db776e6f7ee0896a1bbf2677cd98e9f4a6362987326dd82658604781c",
    "signer": "0x661038958CaBEA62127d3E61af25e811a6a1538A",
    "userId": "7339292"
  }
}