How to get drawio content using Confluence API

Confluence Development Confluence Cloud
1

I need to get content of drawio plugin on Confluence page using cloud confluence API. I’ve read confluence api documentation, but have not found.
My request is:

@GetMapping("/wiki/rest/api/content/{id}")
fun getPage(
    url: URI,
    @PathVariable id: Long,
    @RequestParam version: Int,
    @RequestParam("expand") expand: List<String> = listOf("body.view", "metadata")
): CPage

It returns the next content:

CPage(id=5799939, type=page, status=current, title=Статья с drawio, childTypes=null, ancestors=null, body=CPageBody(view=CPageBodyView(value=<p>Статья. Начало:</p><div class="ap-container conf-macro output-block" id="ap-com.mxgraph.confluence.plugins.diagramly__drawio1525960215910666943" data-hasbody="false" data-macro-name="drawio" data-macro-id="a717f5a0-6a16-4c26-84b4-e9be122dc14c" data-layout="default" data-local-id="c7c0d2c2-4271-4849-a9a2-7e005fe9c6b4">

  <div class="ap-content " id="embedded-com.mxgraph.confluence.plugins.diagramly__drawio1525960215910666943"> </div>