UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PCmjFuOLxnzZrUyOzxAEVfiTOsYsg2xrFeLvYpliUmE=' 
WHERE 
  key_id = 'a28507b5951b66633ff9950edf52bd8637797df1f5099a2759acce8db75985db' 
  AND (
    token = 'PCmjFuOLxnzZrUyOzxAEVfiTOsYsg2xrFeLvYpliUmE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )