GET https://www.pixiv.net/ajax/notification

[HTTP/1.1 200 OK]
application/json
{
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  "body": {
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        "notifiedAt": "2021-07-17T12:22:25+09:00",
        "linkUrl": "/bookmark_detail.php?illust_id=86468782",
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        "targetBlank": false,
        "isProfileIcon": false,
        "content": "2以上的用户把你的作品加入收藏了: <span>\"[草图] 原创角色 Kunika\"</span>"
      }
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}