{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x514cb804fe255db3911cf7b8d2be4fabac9b29f48b7fa7497375bb16c2236c2d",
    "signature": "0x03bcecd7b9d4f49a54ef7bef1343122973bc59b0ca4ef1cde81504fdaadc4dff37dd77fae9c95f6242be6aa0a39923a6abadd769c4ad435d2e878f873d0892f21c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}