{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08bd40b856ea68fb94d3e619d7370e7cc7b95963a018e397c487f668c6d42bb7",
    "signature": "0x66aca549c489253e7be2ad40b2db66b1c936efbcbc7d17d30cf96020234826090baed0119d598c60d2151a5bf687f42baa8f1aceeac07446c5523584924150711b",
    "signer": "0x010890739ee5EEA7A578C39f150C929028b07F2d",
    "userId": "240058941"
  }
}