UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R6Ecc/v60yb8ucM5f7CK2OqDc55JIy8FTr3S7VuldNQ=' 
WHERE 
  key_id = '27a74be3d10b3d28d3652f6cd187722b501eab420719469862efb5c61a444d81' 
  AND (
    token = 'R6Ecc/v60yb8ucM5f7CK2OqDc55JIy8FTr3S7VuldNQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )