{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x505924fb28eb6a83d8caae8d2eccbd26bc74d66095f09a000a7601dba762ad9c",
    "signature": "0x904ba2ac9b168a55f8c4493473ff315c6de6d8d1490881893f63b48c2bfcc7f573b7bbd678b8ceef0281dc0c290de4694dc72fec7028caef7602d653a61edd0d1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}