public JwtBuilder jwtBuilder() {
        return new JwtBuilder();
    }
@Test
    void testParseWith48Key() {
        NacosJwtParser parser = new NacosJwtParser(encode("SecretKey012345678901234567890120124568aa9012345"));
        String token = parser.jwtBuilder().setUserName("nacos").setExpiredTime(100L).compact();
        
        assertTrue(token.startsWith(NacosSignatureAlgorithm.HS384.getHeader()));
    }