{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xfd803c52903ae4b7f8365b05eb3f1901c69c1a9d92a10bceba053bffe6a95cea",
    "signature": "0x38656fe71c2127cc252dc7cd1b639fd6d059cfd3024dce5d2a16af36262ccc926ee0d284d90a6d334410405ee40de2d66ea1ae85b3ab6d5c1beb3a1bd3161fba1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}