{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x8f7cb0fb9999a9aa05012c40c5cf8e7514cea33c2d8d4a9144fed01943df85e3",
    "signature": "0x1159bc05b448772a67a6826dec91389cfc5fbd77103025c28d3bafef49cd90773bbbc73ea7bc717604e9f1694b487ac030b9434c94a8c3f4585e5891c6bdc6281b",
    "signer": "0x424b8Df5989875ef5215DFdB54730e493002E0Ae",
    "userId": "548196171"
  }
}