{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x0a3eaa11d5d8775157c0e6f9a6c399aaa8f3c37e37b18a5c3f545477074a896f",
    "signature": "0x2aa0f43b1b29e0cf75461cff918fa11ea9932359aa78a246b49a98e7ddd991a606a27f9f7e260c54fb680c5dcdbbce61bbccc1168cd433764f0a6594f2e98cb41c",
    "signer": "0x0b1Ea31fc0646624A0A30635986548F20e144a0F",
    "userId": "122395567"
  }
}