{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1810",
    "entityType": "User",
    "nonce": "0x0ca0bab2f731a6a9f1659db36ef17c940e7a18862572b207391a754d3c51fbcc",
    "signature": "0x8d0a8215fc156224acab941d9bbef0e71dc844d857eb7b0d15977902d03d2af561d989993f57beafbf9fc58b9cc98af9d6eae31ebd47cd47f506e34ab16639081b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}