UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9JHMMtq1ybzE/6NHBoWgzgoEgXSKXVbqer5lIsMebIo=' 
WHERE 
  key_id = '81c15ca90f6c650c85836e89858080efe3b20e642140eb0588578b4542b776f6' 
  AND (
    token = '9JHMMtq1ybzE/6NHBoWgzgoEgXSKXVbqer5lIsMebIo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )