UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VQ5jGtAxTYFeRivl9a+HR+PVaQzVLuI6LyVNQDVCn6Y=' 
WHERE 
  key_id = '3ff604d2e722578fec494476d005dd7e6157c0986fc6e8f7c59f2d5d6e6d43f6' 
  AND (
    token = 'VQ5jGtAxTYFeRivl9a+HR+PVaQzVLuI6LyVNQDVCn6Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )