UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PlJjkTSzX1msKf+epIpvx8xuqEnBT0qS9fhvs6PUBug=' 
WHERE 
  key_id = '836f0b960a5c08c6202dccaae16424a5e7cbe76f2b5c0af96cdb382d9108043c' 
  AND (
    token = 'PlJjkTSzX1msKf+epIpvx8xuqEnBT0qS9fhvs6PUBug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )