UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xlE2X5LZCmJdjN79WWtwnzwvhNg1ccisdKmWFkGImpQ=' 
WHERE 
  key_id = '51b3a5c36224921edff564ec4d7f4ee7ca643dfb78292dd47ae9097c7820e9ac' 
  AND (
    token = 'xlE2X5LZCmJdjN79WWtwnzwvhNg1ccisdKmWFkGImpQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )