UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UmT6e6OUH6kdHhIojESsGqZ2GkfXDmaNQDx+Xkek+V0=' 
WHERE 
  key_id = '83a016d01f8fbec1a4cf7bd0e0aa333ce72e54e5852ac726e064a396c640f1a9' 
  AND (
    token = 'UmT6e6OUH6kdHhIojESsGqZ2GkfXDmaNQDx+Xkek+V0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )