{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x364730debba57583bdf6c292198319e20064896fad93e2db86a9976a1c11e386",
    "signature": "0x495e0c4ab67228f2c7015c34a3532104f87c2e637acf506886dbc48c54ff0c8644595e636dc51f85913219f3b30f1d22929fab237f1cc87123ca7dbfde7512c31b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}