feat:[none]加新的topic

pcloud-common-core/src/main/java/com/pcloud/common/core/constant/MQTopicProducer.java

@@ -483,5 +483,10 @@ public class MQTopicProducer {
 	 * 会员活动书刊配置
 	 */
 	public static final String MEMBER_ACTIVITY_BOOK_SET = "topic.memberActivityBookSet";
+
+	/**
+	 * 新读者关注
+	 */
+	public static final String READER_SUBSCRIBE = "topic.subscribe";
 }