curl --request GET \
  --url https://api.example.com/api/v1/campaigns/{campaign_id}/click-stats \
  --header 'Authorization: Bearer <token>'

{
  "total_clicks": 0,
  "clicked_count": 0,
  "total_opens": 0,
  "opened_count": 0,
  "total_sent": 0,
  "click_rate": 0,
  "open_rate": 0
}