{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x6aac40a64504d58bfbda8b3583a23a3446af7596d550689a44cfc76167f580fb",
    "signature": "0xa6781e0660a427287b7efba80b0f0c75ef1620bf370fc2d6f4efef468c4fc88b341dfaaf04cb92bb964c2ac1ea5b3bc893c5b8687986f2ca40a3feb696bc917e1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}