curl --request POST \
  --url https://api.anysite.io/api/niconico/series \
  --header 'Content-Type: application/json' \
  --header 'access-token: <api-key>' \
  --data '
{
  "series": "<string>",
  "timeout": 300
}
'

[
  {
    "id": 123,
    "url": "<string>",
    "@type": "NiconicoSeries",
    "series_title": "<string>",
    "description": "<string>",
    "image": "<string>",
    "owner": {
      "id": "<string>",
      "@type": "NiconicoOwner",
      "name": "<string>",
      "owner_type": "<string>",
      "image": "<string>",
      "url": "<string>"
    },
    "video_count": 123,
    "created_at": 123,
    "updated_at": 123,
    "videos": []
  }
]