UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sME994Yq7vWLtjkkpvXEhuiPaa546rbwmrei+3EqfSI=' 
WHERE 
  key_id = '708df75633e8f37764c3777a95a2fc0af743989152cc679d2100fcec4f09139e' 
  AND (
    token = 'sME994Yq7vWLtjkkpvXEhuiPaa546rbwmrei+3EqfSI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )