UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rBHYpXmiuGBqqVr8blbPHQa1rLje302lIXfvCSAHvJk=' 
WHERE 
  key_id = '27bf02436811c373c297e0364bfb33e58eaf9860fb32169df01264b604ef8861' 
  AND (
    token = 'rBHYpXmiuGBqqVr8blbPHQa1rLje302lIXfvCSAHvJk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )