UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3TzHuw2TC+i6nSSypA/X7MJPXtb6RkKhm0mEcg8FW0o=' 
WHERE 
  key_id = 'c12e51a36db344f1faf4f354cd6cde06b73eb96400bf0a1b8987909976080a41' 
  AND (
    token = '3TzHuw2TC+i6nSSypA/X7MJPXtb6RkKhm0mEcg8FW0o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )