New Post: How to set the Http_client the management certificate in the Subscription to azure connection

In C#, when to connect to the azure service.
the credentials in the class ComputeManagementClient(SubscriptionCloudCredentials credentials)
has been filled with (subscriptionId, new X509Certificate2(Convert.FromBase64String(base64EncodedCertificate)).
But in C++ REST SDK, there is no correspondent. How could I set the Management Certificate.