{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x5b13b85530efc6a452fd558ff5a4bcdf7a6a50241806d9a4b7e2b5d7e3c72623",
    "signature": "0x7e53e83e92574cfbc30fb4372521420d155d0a578290c1a081c8729d7f0f60c31ee80c841bd0a5a668abbd56b679ff74d4243a61773544ceec3c032649236a371b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}