UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KNc/FFc+iqVOQQAeUX8fhn6GouYXhzZjFJ7tvdftM9Q=' 
WHERE 
  key_id = '50bf4648d787ddc8599f03d3daa33d63861c7547416c90543cb56fa682433cde' 
  AND (
    token = 'KNc/FFc+iqVOQQAeUX8fhn6GouYXhzZjFJ7tvdftM9Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )