{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0x8b6a4b05cfebd7ff95e82d436ed989b3436d1c775d358fc7d5c239fa6e63dd8f",
    "signature": "0x78de5b4a678b5f477ee19e1b039cfc872eb6a06e06ffb5c54ec917be63f5fa4f2f7789c711f7b5216def5057a65294fa4a20f02c2af00226f4de2e138fe901cc1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}