{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x1ccd3739d3eb4954807ef329cabb5a85501b23d9b8e899ba8964c41d54c7ffb1",
    "signature": "0x5bf706fd644b0d73a9e21deeb1692be7c7a9a94a8664d3be7e6e808a0ea4b2d53db91a5cda9770165f8fa7c35cf97fbba51a232db40a0e4c6ae345cfa14b3eba1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}