In order to use MailChimp subscription form (shown in the image below) you need to follow these steps:
Register MailChip account if you don't have one already.
Create Signup form following the MailChimp instructions. Choose Embedded form and then Condensed.
Copy the form action attribute from the code snippet.
Next step is to replace the existing form action attribute (provided with the template) with your own.
IMPORTANT: Change post? part to post-json?. And change method from post to get. This is necessary to enable the form submission via Ajax (without redirecting or page reload).
