private List<BasicNameValuePair> buildPubKeyQueryParams() {
        List<BasicNameValuePair> params = new ArrayList<>();
        params.add(new BasicNameValuePair("operation", "query"));
        params.add(new BasicNameValuePair("username", mgrConfig.getRptUserName()));
        return params;
    }
try to read cache of proxy entry

@return read result
inlong-sdk/dataproxy-sdk/src/main/java/org/apache/inlong/sdk/dataproxy/config/ProxyConfigManager.java