diff --git a/src/main/java/com/example/cosmos_serversb/jsons/UsersMapJson.java b/src/main/java/com/example/cosmos_serversb/jsons/UsersMapJson.java
new file mode 100644
index 0000000..c44487a
--- /dev/null
+++ b/src/main/java/com/example/cosmos_serversb/jsons/UsersMapJson.java
@@ -0,0 +1,29 @@
+package com.example.cosmos_serversb.jsons;
+
+import com.example.cosmos_serversb.entities.Group;
+import com.example.cosmos_serversb.entities.User;
+
+import java.util.ArrayList;
+import java.util.Set;
+
+public class UsersMapJson {
+    private ArrayList<UidUriJson> users = new ArrayList<>();
+
+    public UsersMapJson(Group group) {
+        changeUsersMap(group.getMembers());
+    }
+
+    public ArrayList<UidUriJson> getUsers() {
+        return users;
+    }
+
+    public void setUsers(ArrayList<UidUriJson> users) {
+        this.users = users;
+    }
+
+    private void changeUsersMap(Set set) {
+        for (User user : (Set<User>) set) {
+            users.add(new UidUriJson(user));
+        }
+    }
+}