{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f6c078de87cf5cc3bd70daea7c5dcd76d9db90b6e816fd63eb9873584e3ae94",
    "signature": "0x5f58975e6b84c4caeda3ecd49fb2227ca67137062a3848b4090991ef4bbeb4e634bb535bf218bb548174d66b96305e093f3ae1b52edf0d89c95ddd2a9f6b828c1c",
    "signer": "0x88B9ef717F7f1675d0219Ca1Fdb17c02b749a81a",
    "userId": "161660778"
  }
}