{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x7260782573acb2d2ba4cdc25e4144f3e50141452533838e14183a155762d0900",
    "signature": "0x70f1e7b6ba52c8d5debcbb83dae1c599445ea2023847e73d20d3ba0541810ab06dcc419c54dcbd7357d07f1adb963aaa64db2e0be55d360545982564660d4fed1c",
    "signer": "0x1DEaea8dF79aFeA03eCed4B19198D3090e967263",
    "userId": "902152027"
  }
}