UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U1HK7krWaxeMVi9j+gsTkbTOErrh/IXKDYxKLCzF1ak=' 
WHERE 
  key_id = '273766c3721807a9a5c077c27b93b6897709bd91d8a64221d028df1ce6a6df52' 
  AND (
    token = 'U1HK7krWaxeMVi9j+gsTkbTOErrh/IXKDYxKLCzF1ak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )