Don’t bloat it though. Make sure that everything you put in the right column is both relevant and necessary for your buyer to continue with his discovery. Do not waste space in this column with social media follow-me widgets, or company information, or other random irrelevant stuff. Even the blog subscribe module is too much for the page, unless this page talks about your approach to blogging (still we put it here in this template to illustrate it can be done).
The call to action in this layout can be placed right side column. On mobile, the entire right column will move under the content area.