{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4095e885acda40190a3572d302044ff0599796201b1653ef51bdad67cbd65662",
    "signature": "0x43a1f07498d09acf6ef3156090df4b3d39fd57e73e02033beee86ac6237811575dc0740ab441ba3d01876f288ebce190e3e40bef811bbbf244a8d70ebae26f871c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}