{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x870e2d8dbbd0339c10cc3b6921296a3a655043b53e842438ef94f5f6d7d05811",
    "signature": "0x806a107f01398eae61eabfef6ae26fd0f3b370227a9d1dc1a6a23aa8a2c52dcd7d777bd4f613446b48513d36450b3f01fbd289fd63f8bfe82f8ba1800a0d5e5c1b",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}