[NonDebuggable]
    procedure SignDataWithAKVCertificate(DataToSign: Text)
    var
        AzureKeyVault: Codeunit "Azure Key Vault";
        CryptographyManagement: Codeunit "Cryptography Management";
        SignatureKey: Codeunit "Signature Key";
        Certificate: SecretText;
        EmptySecretText: SecretText;
        SignatureOutStream: OutStream;
    begin
        AzureKeyVault.GetAzureKeyVaultCertificate('Key', Certificate);
        SignatureKey.FromBase64String(Certificate.Unwrap(), EmptySecretText, true);
        CryptographyManagement.SignData(DataToSign, SignatureKey.ToXmlString(), Enum::"Hash Algorithm"::SHA256, SignatureOutStream);
        // Do something with SignatureOutStream
    end;