{"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":"b473d8e0-18f7-7936-ff7c-77e032e55fba","errors":[{"field":"email_address","message":"This value should not be blank."},{"field":"email_address","message":"This value should be of type string."}]}