UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k8ibseRn97ymn2ZyUABklU91qTEOaCKNK4XXF5dy8/w=' 
WHERE 
  key_id = '837d4d5deda8dc47ab4f53002519cbdac3a38c161d6742162f99c970ad8a468b' 
  AND (
    token = 'k8ibseRn97ymn2ZyUABklU91qTEOaCKNK4XXF5dy8/w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )