UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dx6xOw0nhJHTLZxNmiC+guOCJYeU6R2kmpRRKq7cbO0=' 
WHERE 
  key_id = '68ec6df256e8cc8ba6aeb2009657ad80d2daf0ac830d108a98e5262fd55dfaa7' 
  AND (
    token = 'Dx6xOw0nhJHTLZxNmiC+guOCJYeU6R2kmpRRKq7cbO0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )