curl --request GET \
  --url https://api.interchange.io/api/v2/buyer/campaigns/{campaignId}/media-buy-status \
  --header 'Authorization: Bearer <token>'

{
  "campaign_id": "<string>",
  "media_buys": [
    {
      "media_buy_id": "<string>",
      "adcp_media_buy_id": "<string>",
      "internal_status": "<string>",
      "adcp_status": "<string>",
      "previous_internal_status": "<string>",
      "previous_adcp_status": "<string>",
      "updated": true
    }
  ],
  "agents_queried": 4503599627370495,
  "errors": [
    {
      "media_buy_id": "<string>",
      "error": "<string>"
    }
  ]
}