UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g+LZlrkobrVdQku6Ulq4qVj/SK5xjp7ZDCKE3U3k4yM=' 
WHERE 
  key_id = '50b21926daa37eb0f02f8446c2113af86c904568370f9ff52afc93a638d75e27' 
  AND (
    token = 'g+LZlrkobrVdQku6Ulq4qVj/SK5xjp7ZDCKE3U3k4yM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )