{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x20b2c286de32f30b2d17dc157a9e329c6dd4768273d7a44f91ee4eafa4806e54",
    "signature": "0x3dfca9d41fade1d243b026f6523ddb9251388b83c4f15abc1fa18f99dd40cbc35af21616e730b8464c926d969d5c7803a8b64e23d60e296f25ca5ff2568edc7f1b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}