UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cg+dvzh8WXFUh393rSX/lUJSeJj/B6wHctyHFK97BOs=' 
WHERE 
  key_id = '1234ed50529e81fd335b35a7682f936193b46ed555f5939b9d5825d8d2b9ff4a' 
  AND (
    token = 'cg+dvzh8WXFUh393rSX/lUJSeJj/B6wHctyHFK97BOs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )