{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x325bdfe658f12bd400d4f5be2c4b5171d9dacf5e7c93be52e28fc5fff1f221a0",
    "signature": "0xae0c2d3035037004a381eca80c0116fe075b106755dcd2a0965ad2fdda9fa84a4eaf3f7a1bad968f15e8a7707de1a749073bc036d69fcd2802487a1f354b01071c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}