{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "870640566",
    "entityType": "Notification",
    "nonce": "0xb88d624382d0d06427949b0bac463bfd3a893363e6843b5dadf8354904a5b318",
    "signature": "0x18ae1109ede7e12294ecd6e83106da6a3f35f5de3fdc009233c0603cc3bbeaa718c784dc88384d7ea3a46adabd93fe46428feda17d58a71badf84253ba73def01c",
    "signer": "0x8027C7ef52428f4a1C57Bb6De47d6f56750406dC",
    "userId": "509773150"
  }
}