Set up Mailchimp Form:

1. Activate your Mailchimp for wp plugin.
2. Mailchimp for wp -> Form -> delete the form code and Copy and paste below code.

3. Save it.
4. Also you can configure additional massage.
5. Now Click Get Shortcode. code like this this code use any where like widgets, page.. visual composer Mailchimp shortcode field

Set up Contact Form7 sign up Form:

if not Milchimp account, collect sing-up user email address.

1. Activate your Contact Form7 plugin.
2. Contact -> Contact Form -> Subscribe Form available. if not, Add new-> delete the form code and Copy and paste below code.

[email* your-email class:input-text placeholder "Enter your email"][submit class:btn class:submit-btn icon-arrow-long-right id:form-submit "→"]

3. Save it.
4. Also you can configure additional massage.
5. Find shortcode like this: this code use any where like widgets, page.. visual composer Mailchimp shortcode field