{"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":"13808b1e-980f-5a35-6860-0e15fe8ca5b6","errors":[{"field":"email_address","message":"This value should not be blank."}]}