UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'tThXg0lN5ldxPkww2zb0KPGKK53Va2zqmva7rsK1TeU=' 
WHERE 
  key_id = '048b045605e7ff5ec21e29debe2a12b530679e828eb9a9273083d4150c392844' 
  AND (
    token = 'tThXg0lN5ldxPkww2zb0KPGKK53Va2zqmva7rsK1TeU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )