How to use embed code

Hello, is there any way to use script code to embed mailchimp form into my website? Can we do it by this plugin?
Somehow my client is not interested to put API Key to connect.
He got the embed script to put it into his website.
How can I embed it by this plugin?
Code like this:
<script id="mcjs">!function(c,h,i,m,p){m=c.createElement(h),p=c.getElementsByTagName(h)[0],m.async=1,m.src=i,p.parentNode.insertBefore(m,p)}(document,"script","https://chimpstatic.com/mcjs-connected/js/use53d5099b02/BLABLA.js");</script>
Thanks

 

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