{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xcc192127242730793759a26b51527a1e5fe220d59e3ba3c2b8414090827baf1e",
    "signature": "0x85d87ac2d014d463f82974153c8dee6a4f9fd4466bcbdddd45143a615c83d2116ea25061d2f9d534ed43d9af036f0626262e03d810113becc0e2f78afee7b8b51b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}