UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K3njuySPjE5B6eaJxaUWtSjdSRrFn0lKWmfxxYmQ+Gc=' 
WHERE 
  key_id = '834962da9f8e99694b7abfc75b92143357d55b54a574b40bd6c90b62676fde9b' 
  AND (
    token = 'K3njuySPjE5B6eaJxaUWtSjdSRrFn0lKWmfxxYmQ+Gc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )