UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xXajzn3XHowU891VNXycJWlFqybe7NFzm9YJVaoCFFI=' 
WHERE 
  key_id = '994edb77b2799517fb71c629b7c4eac8a1402f5217bb63eb3b75362531e815d8' 
  AND (
    token = 'xXajzn3XHowU891VNXycJWlFqybe7NFzm9YJVaoCFFI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )