{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x27be4b7cc7528011c15e4aeaee53033a2301e6c3ebb7fc3936b977f1ab500cc3",
    "signature": "0x34c87a764fcfafdf8e8481ea4ff3389dfc5c1feedca1dd8f5677b53c5e17f71d13f6ba9042b3714b19f4e8887b540813d8dfc638f3ef87cfa81a7eda9d9ce23e1b",
    "signer": "0x83A4162810A55B49858D3b17aC8572D1c34eC8EE",
    "userId": "517422960"
  }
}