{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x99423b5005780e7d23b51ea1572262873b033410723eaff165a251dd72df34af",
    "signature": "0xc244d0d42dab44a242f19b549d5216e3642abd1f66515fd5e081a5a2c515e9b672a9afe575cebb82c3980065db3dca98adbde4df11c97defe6e84da0020b951e1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}