UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W6JmRA2VQJsIS6kW/b92KtzkXroy2sza2jGOZXIRcJw=' 
WHERE 
  key_id = '790beb71baea7a595403fc752148426c298b5bf0118c75c1adaf3435137a7ea7' 
  AND (
    token = 'W6JmRA2VQJsIS6kW/b92KtzkXroy2sza2jGOZXIRcJw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )