UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PPYmnlv01fWevo0uKM8DncUi7hgs4z37rO7F+KUeCYw=' 
WHERE 
  key_id = '55bb77a9e78ddad31e61bfa4dbc196b973a01694acd26cd8a3e0c12988040fdf' 
  AND (
    token = 'PPYmnlv01fWevo0uKM8DncUi7hgs4z37rO7F+KUeCYw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )