{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x229089a699271f6190ead7b4c21d0f23e3cdbfef063d908e5c52eb7b559cc5b3",
    "signature": "0xcde23235dabd84dd115dde66908d1ca4a3954f1ae5be14047c6f7844cc12add22fb0960c0239fa8ed279a1532badc26efa0a2c6b72a114228eb8de472a8cc7f71b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}