{"type":"https:\/\/mailchimp.com\/developer\/marketing\/docs\/errors\/","title":"Invalid Resource","status":"400","detail":"The resource submitted could not be validated. For field-specific details, see the 'errors' array.","instance":"fa085194-6b3c-69fc-b408-38a7005cf5df","errors":[{"field":"email_address","message":"This value should not be blank."}]}