{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "1422880728",
    "entityType": "Notification",
    "nonce": "0xdd811de762250652d712be17cd35c0b706dc55b182b157ede591e7a28c3dc8ae",
    "signature": "0x0357cde8bb3e8ce5040e646d718c487e0998c237d8af469f12e26ab0cfd2e9e319e618068c68bf73f2d77890c0ad99992b4cd75192e702eabadb3b377f88937b1c",
    "signer": "0x6687B667182cfdc5646f5AEB14a9945c9b1d3A6B",
    "userId": "100"
  }
}