UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ml8QLKHfLHteyUuViDE5ef26TZ7hLrQW70QE+02/TBw=' 
WHERE 
  key_id = 'b75ca3fe5ded30e36c2e07053980058f1256ad79adc4040b39d59947e6a3fb77' 
  AND (
    token = 'Ml8QLKHfLHteyUuViDE5ef26TZ7hLrQW70QE+02/TBw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )