Clear a Sitefinity users Ldap Cache key on login

ClearSingleUserLdapCache.cs

        public static void ClearSingleUserLdapCache(string username)
        {
            var keysToClear = new List<string>();
            try
            {
                var userManager = UserManager.GetManager("LdapUsers");
                var currentUser = userManager.GetUser(username);

                var ldapFacade = new LdapFacade();
                var mapping = Telerik.Sitefinity.Configuration.Config.Get<SecurityConfig>().LdapConnections.LdapMapping.UserMapping;
                var ldapUser = ldapFacade.GetUserById(currentUser.Id, new string[1]);
                var ldapUserGuid = new Guid(LdapUtilities.GetAttributeValue<byte[]>(ldapUser, LdapAttributeNames.ObjectGuidAttribute));
                var ldapRuinedGuid = new LdapFormatter().ToLdapFormat(ldapUserGuid);

                keysToClear.Add("DefaultLdapConnection|(&(objectGUID=" + ldapRuinedGuid + ")(&(objectClass=INetOrgPerson)(!(objectClass=computer))))|0|0|memberOf;|False");

                //Clear Current users LDAP cache if it exists
                var cacheManager = SystemManager.GetCacheManager(CacheManagerInstance.Global);
                foreach (var key in keysToClear)
                {
                    if (cacheManager.Contains(key))
                    {
                        cacheManager.Remove(key);
                    }
                }
            }
            catch (Exception ex)
            {
                //Do whatever
            }
        }