UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6xQAvgEvI3V6JJLhi5lRrOIIo3dLsTLez4nzPdZfrrI=' 
WHERE 
  key_id = '83d801f608640ba00868717fcadb70310ff35c165e6fe6ada2df94f944d19de3' 
  AND (
    token = '6xQAvgEvI3V6JJLhi5lRrOIIo3dLsTLez4nzPdZfrrI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )