{"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":"f3c82a5b-441c-4a9a-aa7a-8a03815b496d","errors":[{"field":"email_address","message":"This value should not be blank."}]}