Adding signups to mailchimp

Bubble newbie. I know this might be a basic question. I would like to use the API connector on Bubble to get the email, first name and last name of someone signing up and add that user to mailchimp with a particular tag.

I have been reading the MailChimp API documentation but still having trouble. I know it might be a lot to ask for but can anyone add screenshots of what I need to do, how my workflow needs to look like