{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7f72ad0743c12ba8a71c29f3a29fb4a5a29c2582d254f685c909c358c0eceb6",
    "signature": "0x813a8b15aeaccc035bad0ffd6b4f4c990ca4ce75d52cd345b12a3ab6122a7a754a3413ec733590198010d04ee921c09ceaff387136e15f618e141eeefea016d41c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}