UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MWShg1axJprUHwMbTFiuz65QkI+LZIMTI0THiZG2EDk=' 
WHERE 
  key_id = '938d81dbc0bb02144a7220ecabb31e41e5ea601ad15893b2a721c65dbe7ba81f' 
  AND (
    token = 'MWShg1axJprUHwMbTFiuz65QkI+LZIMTI0THiZG2EDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )