{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x77e3ba00fcd28b67054f816a1954673dc1e760b058245ea5b84694493c02cd58",
    "signature": "0x78c588f2ca05a35592ee23a4c75b69723aa09d30de831981faf7a6da6f2e83814cf2ed5ddbdc89aa7caec50098e713dc21589abc2918fcb005ed9b38d9648cbf1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}