curl --request GET \
  --url https://api.eflow.team/v1/networks/custom/landingpage \
  --header 'X-Eflow-Api-Key: <api-key>'

{
  "landing_pages": [
    {
      "custom_landing_page_id": 123,
      "network_id": 123,
      "network_offer_id": 123,
      "network_affiliate_id": 123,
      "url": "<string>",
      "status": "active",
      "time_created": 123,
      "time_saved": 123
    }
  ]
}