{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xd927ccbb93587df2b8dfc58e93dc87ae2e5172256b82871252adeee62b733ffd",
    "signature": "0x0b82f0d7e6ee5f3fb522e28ef31c0965975b5eea35005e18d5c26c5e94a05e36346cc83b4e0cf00dcca4fb3af2c26a4e1d39d7c8235d291f436330cb8ab17c9a1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}