{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0xe4af037ad446bbdc7b8ccaf52f7a0ca65203480f3172a9049a5a759baa3b3085",
    "signature": "0x84cb1a0d3e42838cde6f1c0b4f6e05bc9b6ecc5ee0c0a4ea481cb1f6a993af1768195a0a457a431aa2b62b9f30ad5e2ff60f634883cea8dfd749a89c9cf960d61b",
    "signer": "0x21db45C4f5C8740111bf32CdD6B0F1E7f914962d",
    "userId": "426872651"
  }
}