UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Y/heIp5uZjLFaijRzbaaocbvP3gkV6MRSa4kSkZiQnc=' 
WHERE 
  key_id = '81f423c03827388fa8206142a452e230ee0015930a179ab7dd09598cbfa9ac23' 
  AND (
    token = 'Y/heIp5uZjLFaijRzbaaocbvP3gkV6MRSa4kSkZiQnc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )