UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n2qdUyziEiD33WiaA/xSEYw9PmV2CFCK2F7GNXBhLAk=' 
WHERE 
  key_id = '81d8d8489ab1f08d77ddebc58a4f311db4177171479181e5840f1d5a8da46e95' 
  AND (
    token = 'n2qdUyziEiD33WiaA/xSEYw9PmV2CFCK2F7GNXBhLAk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )