UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/5AHLOi2NRiIBWaDYtWBubd9/Oy4qvPtqKDrcnvLrEw=' 
WHERE 
  key_id = '821d71652a4759e00683cf192b8d1d108a58e49a1da27138593d86895811b8af' 
  AND (
    token = '/5AHLOi2NRiIBWaDYtWBubd9/Oy4qvPtqKDrcnvLrEw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )