{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x279779354b930fc1d13b7325813928acdc02c6de62baf17f9556fa8d504020f7",
    "signature": "0x17c593f2dd30e2e7be06e99db681ebab328342d8c9f59f8b5c0e01f34e0db4a24afa31f716ded6ce16d2951e2c6a4ded655f2966641f319c9b3471f27b5adc8e1b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}