curl --request PUT \
  --url https://api.twexapi.io/x/articles/{article_id}/cover \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "cookie": "<string>",
  "cover_image": "<string>"
}
'

{
  "code": 123,
  "msg": "<string>",
  "data": {
    "media_id": "<string>"
  }
}