UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '79VaFOOw2mTO4mNRqm/lzjSy7WECcsc//2rRWfWgJco=' 
WHERE 
  key_id = '4c993e3ec1651634a09a14a1d8606e86f156a04132b0bd2c1c97c95e17b1ee41' 
  AND (
    token = '79VaFOOw2mTO4mNRqm/lzjSy7WECcsc//2rRWfWgJco=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )