Array ( [apikey] => [email_address] => [status] => subscribed [tags] => Array ( [0] => ) [merge_fields] => Array ( [FNAME] => [LNAME] => ) [update_existing] => 1 ) string(206) "{"type":"https://mailchimp.com/developer/marketing/docs/errors/","title":"API Key Invalid","status":401,"detail":"Your request did not include an API key.","instance":"c34121af-ced2-2f9b-463a-98da127813a2"}" Mailchimp executed