How to use subscription form

The subscription form:

Step 1: You need go https://mailchimp.com/ and sign up account.

Step 2: Just go to your Mailchimp list -> "Signup forms" -> "Embedded forms" and then take form action url in the embed code http://prnt.sc/7lieht

Step3: Go Appearance > Widgets > Footer widget 4 > Inwave Subscribe 

Paste url action (step2) to Action Url 

We hope it help you