如何在c#中反序列化ksql查询的行键？

var config = new ConsumerConfig
{
    BootstrapServers = "kafka-bootstrap-server:9092",
    GroupId = "consumer-group-id",
    AutoOffsetReset = AutoOffsetReset.Earliest
};

using (var consumer = new Consumer<Null, string>(config, null, new StringDeserializer(Encoding.UTF8)))
{
    consumer.Subscribe("ksql-query-output-topic");

    while (true)
    {
        var message = consumer.Consume();
        var key = message.Key;
        var value = message.Value;

        // 反序列化行键
        var deserializedKey = JsonConvert.DeserializeObject<YourKeyClass>(key);

        // 处理反序列化后的行键和值
        // ...
    }
}