https://...surpass.com/api/v2/Media/

Header:

Content-length: 198
Content-type: application/xml
Accept: application/xml
Authorization: Basic Q1RMRGVtbzpQYXNzd29yZa==

Body:

<media xmlns:i="http://www.w3.org/2001/XMLSchema-instance">

  <data>/9j/4AAQSkZJRgABAgEAAAAAAAD//2Q==</data>

  <subject>

    <reference>JLTS</reference>

  </subject>

  <name>BTL-square.jpg</name>

</media>

Response:

<response xmlns:i="http://www.w3.org/2001/XMLSchema-instance">

  <id>4151</id>

  <href>https://...surpass.com/api/v2/Media/4151</href>

  <errors i:nil="true" />

</response>