{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "641492277",
    "entityType": "User",
    "nonce": "0x6ab8e67ec679251f232705346875d752e73be13fbb6b72f93232ef4310177110",
    "signature": "0x82f0314f8377d76efe980a6b51450dcbe68c49da046ed09a74fbb1bbf78492f235965c968b39915a252b2d139e2aacba642f95eda2d9fa763351a09e1bc6e7751c",
    "signer": "0x43FB3FC9D8Ef17aD9D2f41250bc75809a3D035Da",
    "userId": "593031615"
  }
}