{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xd4cda0cae92c080fa05c625c5ba8339c36523ddf1e353a23af724144a40e6d1c",
    "signature": "0x18ec3e4d42c04c74cff68019216b25fedf6ac014965ec190368206dedcf322761eb301119a485144eccfbc2a177865e1bb5981342829e6b50613460956bfa7941c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}