curl --request POST \
  --url https://api.anysite.io/api/steamdb/promotions \
  --header 'Content-Type: application/json' \
  --header 'access-token: <api-key>' \
  --data '
{
  "count": 2,
  "timeout": 300
}
'

[
  {
    "app_id": 123,
    "name": "<string>",
    "@type": "@steamdb_promotion",
    "sub_id": 123,
    "type": "<string>",
    "image": "<string>",
    "url": "<string>",
    "start_at": "<string>",
    "end_at": "<string>"
  }
]