{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4721dfb997e089033d4ca906c4e7c7d502bff4ee91e38013b9ddff6a394a679d",
    "signature": "0x484a3523e6e5179150eb3f69fa5c94c2828a54ac878217c44e864e6f8f0368c8738b3dbf6ccf4d1f1141c150f450f4ee8598fd721ecbdbabf1cf8d479ebab0251b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}