curl --request POST \
  --url https://api.anysite.io/api/niconico/users/videos \
  --header 'Content-Type: application/json' \
  --header 'access-token: <api-key>' \
  --data '
{
  "user": "<string>",
  "count": 2,
  "timeout": 300,
  "sort_key": "registered_at",
  "sort_order": "desc"
}
'

[
  {
    "id": "<string>",
    "url": "<string>",
    "@type": "NiconicoVideoCard",
    "video_title": "<string>",
    "content_type": "<string>",
    "description": "<string>",
    "duration_seconds": 123,
    "view_count": 123,
    "comment_count": 123,
    "mylist_count": 123,
    "like_count": 123,
    "registered_at": 123,
    "image": "<string>",
    "latest_comment": "<string>",
    "is_channel_video": false,
    "is_payment_required": false,
    "owner": {
      "id": "<string>",
      "@type": "NiconicoOwner",
      "name": "<string>",
      "owner_type": "<string>",
      "image": "<string>",
      "url": "<string>"
    }
  }
]