Either schedules or cancels publishing based on the POSTed JSON. Note that this endpoint must always be used to publish a blog post. Use the Create or Update endpoints to set the publish_date, but then use this endpoint to trigger the actual publish event.
Scope requirements
Unique identifier for a particular blog post
Action to perform: 'schedule-publish' sets up the content for publishing at the publish_date already set on the post, 'cancel-publish' cancels a previously scheduled blog post publish
schedule-publish, cancel-publish Publish action completed