UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'znLny0Ju5n3qrhKLwt+EdGUo0qF1EiOjIoHDO1hUYsI=' 
WHERE 
  key_id = '8043af8e16f5f61d8d72fa501c46601b64481b4adf68b83c8b3c0c4445f83803' 
  AND (
    token = 'znLny0Ju5n3qrhKLwt+EdGUo0qF1EiOjIoHDO1hUYsI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )