UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e6N+DSpSL9P3wwXnLmx9vScbkufJw+WtuVWv/uYTwuY=' 
WHERE 
  key_id = '1c7ad03651b41bad9c1a74d78e1f97a7984537028ac19fdde57bc169ba7ff7bd' 
  AND (
    token = 'e6N+DSpSL9P3wwXnLmx9vScbkufJw+WtuVWv/uYTwuY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )