{"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"The resource submitted could not be validated. For field-specific details, see the 'errors' array.","instance":"0cd2d03b-5922-4dd3-b13d-b6ccc7e0c181","errors":[{"field":"","message":"Required fields were not provided: email_address"},{"field":"email_address","message":"Schema describes string, NULL found instead"}]}