UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MlHoH0TmvanZY+xbqB7nkyHv7iPwTonrfqIX6sayifI=' 
WHERE 
  key_id = '3a3c6eac477e54a8a82ab1a7b16545831cf6838bb0c858091cfb9ac638cd2a99' 
  AND (
    token = 'MlHoH0TmvanZY+xbqB7nkyHv7iPwTonrfqIX6sayifI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )