{"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":"dffcc6d9-75f7-2d5f-e4ee-029ca21d9ea3","errors":[{"field":"email_address","message":"This value should not be blank."},{"field":"email_address","message":"This value should be of type string."}]}