private ByteBuf getBlocklistKey() {
        return isIpBlocklist
                ? BLOCKLIST_KEY_FOR_IP
                : BLOCKLIST_KEY_FOR_USER_ID;
    }
Used to remove the local expired blocked clients quickly, even if there are a lot of blocked
clients so that we can run eviction more frequently.

@implNote It is acceptable to store the same IP or the user ID with different block times in
          the skip list because it is how the skip list works.
turms-server-common/src/main/java/im/turms/server/common/domain/blocklist/manager/BlocklistServiceManager.java