{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xfee6dd23d2f28c28fae440612a0c0fd6e93124e06ddb37d3a595243ba786d2fc",
    "signature": "0x140fb23ccb1d96268df3817445134925f2125709a67190e717c8f940a8a49cd31327e0bf30a6fab23422522ea1b5285b1f88eefbbcd6b7c39fe8359be85c8f3b1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}