UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Um0ca13jyHGAzJ8NfXj6hZenyZGizkUWPuvKVXww2XM=' 
WHERE 
  key_id = '8b2f852b96b7dacd39137d571869d3e6e1c61d3148a56cdb6c2571243698bbb4' 
  AND (
    token = 'Um0ca13jyHGAzJ8NfXj6hZenyZGizkUWPuvKVXww2XM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )