{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1933317bfb43e7c19bd300fc309cf59be6c02861a564c822e7cd8d096a8d91b4",
    "signature": "0x87cbd4bd85e2ece7d451e6537cb9b38b83d9517cf4b0ddada48182542271035b15ee5b4b560f43d0fbb63519bd802ef12ed06591ffe412b1726d10491e1df03a1c",
    "signer": "0x5aA9Aef60E37A9524A78d9969Ada9b8113513D4B",
    "userId": "565957720"
  }
}