docs: public JwtToken refreshToken(String token) {
          String refreshedToken;
          Date expireTime = generateExpirationDate();
          try {
              final Claims claims = getClaimsFromToken(token);
              claims.put(CLAIM_KEY_CREATED, expireTime.getTime());
              refreshedToken = build(claims, expireTime);
          } catch (Exception e) {
              log.error("refreshedToken jwt token error : {}", e.getMessage());
              refreshedToken = null;
          }
          return new JwtToken(refreshedToken, expireTime.getTime());
      }