{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x4519acaf4798f9293c620ba32ff61cd41a348bb74cd36f8360ae5d17acb96970",
    "signature": "0xcbd72818364c09f55ee81c38781ec6a4b9551c214e5f29f67baaa0394ae6f3f137276462bc2a13bf469407b7ececc65438a84b477e65cafe4bb60a712c95d6be1b",
    "signer": "0x89EA9Be0Cefd53f285d77356b4395f079931a5EC",
    "userId": "822518796"
  }
}