{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb52d8c5d5d3dce4a0a3251e3ecd8942291a0b0abb1d8111a29f93a043c7a9f71",
    "signature": "0xa0766a2f0ca7b250f05f3dd237faa940305c9065d3ee633472557a27be7e42984c4891f7705475c8c507a9551e6b6f4cd2556512d96c9ed8f9e60da83d3482211c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}