GP / Block / ToC schema

Hi there,

I created a Table of Content manually by means of a Container and Headline block. Then I added the following HTML block to embed the JASON-LD tag.

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Table",
  "about": "table of contents"
}
</script>

Finally, I tested the schema using the Markup Validation-Tool from Schema.org. --> no errors

Am I missing anything to make the ToC Schema "readable" for Google?

Thanks,
Jan