{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4bb5eb62b686d7be87f096a3d3d1cca2f215da0504d8cd3c05dc3593c73e2d53",
    "signature": "0xcba8338d6adcfebf0bc1366a10bfe259039e3ae67aa71f2602dc15cb78ca4e671371631eb786b71bc03c20f75fa04014a7926fd273d0d8e64e8c796777b8b6cc1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}