{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x9b9647506c66499d9eae622e117feec422243c26bb770093a154063249756943",
    "signature": "0x059f5f8ed41a89706a7c1895683a08cb03c20ee55ba88516c3a993f83e2b78703322c47f67de9b9fa75dae0c5a822a8a835cc8482725246592b4df0d09cdec5f1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}