<amp-ad
  width="640"
  height="360"
  type="exco"
  data-id="3cc23005-ddb5-42c7-965d-37ccf310b1a5"
  data-config="{}"
>
</amp-ad>

For additional details and support contact support@ex.co

• data-id: video channel id

• data-config: all configuration parameters as stringified JSON object. Read the docs about external configuration object here