diff --git a/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java b/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
index 55b5134..b8ea0a5 100644
--- a/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
+++ b/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
@@ -11,6 +11,7 @@ import org.springframework.stereotype.Component;
 import org.springframework.web.client.RestTemplate;
 
 import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
 import java.net.URLEncoder;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
@@ -86,12 +87,7 @@ public class HttpUtils {
         int count = 0;
         for (Map.Entry<String, String> param : params.entrySet()) {
             ret.append(param.getKey()).append("=");
-            try {
-                ret.append(URLEncoder.encode(param.getValue(), StandardCharsets.UTF_8.toString()));
-            } catch (UnsupportedEncodingException e) {
-                logger.error("UnsupportedEncodingException on param " + param);
-                return null;
-            }
+            ret.append(param.getValue());
             count++;
             if (count != params.entrySet().size()) {
                 ret.append("&");