{"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":"b6499f37-d8b3-bf81-2e39-4fc42495f276","errors":[{"field":"email_address","message":"This value should not be blank."}]}