UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ern8v8ydRKNSxiY1fk0vmupoUQefHo18MysRZbPVaZY=' 
WHERE 
  key_id = '420aa4e1b17d5016b0cf0f89dfe62705699852544eb8b1428f16416427d3cec7' 
  AND (
    token = 'Ern8v8ydRKNSxiY1fk0vmupoUQefHo18MysRZbPVaZY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )