Cpe(wds mode)>hub/router(pppoe)>second router(pppoe)

hello every one
i have cpe ubnt work in bridge mode (wds) connected via cat6 cable to openwrt router work with pppoe
i want to purchase another internet subscription without buying another cpe
and make the first router work as hub and router with wifi and give the second router link from cpe to connect using another pppoe user name and password
is it possible ?