I'd approach this differently and from reading your replies you seem to be a fairly laid back (non "cutthroat") guy so this might be interesting for you.
Use it as a fun experiment to see how much you can grow it not how much you can monetize. Formulate some assumptions and test them. I'd personally pick one of the countries and see if I can push installs in that country hard (might be difficult due to language issues).
Try to figure out how people learn about your app and install it. Figure out what phones it is installed on and write a blogpost on using your app on that phone etc.
55k active users isn't bad. If you keep on growing someone will get interested even if you didn't monetize before (possibly even because you didn't) especially since it's not a "fad app" but something sustainable as long as there's low resource phones.
[worst case you can use it if you ever want to apply at Facebook]
tl;dr: use it as your private growth-lab and learn a lot :)
Also, once you have another project (maybe one that's easier to monetize) you want to push, you can use your existing app to drive a bit of traffic to it (as a sort of ad that shows only once per installation, for example).
Potentially it's possible to monetize it and use it as a playground too though. I've tried both and I think you learn different things from each, both very useful though.
Just put some ads and hope they will tap on them. Those countries prefer to crack the software rather than paying for it. It's because they are poor people and your application is needed by poor people. So just put some ads and let the companies find a way to take money from them.
Mistargeted. Some of those countries listed have large "like" farming operations. If you really want a lot of Philippine users then put in features that "like" farmers would want. Ease of switching identity, stuff to help populate fake accounts to make them look real or more real...
Or if you don't want to get blocked by FB in some eventual roundup of fake accounts (although admittedly FB has no financial incentive to do so, it could happen...) try to fix the demographics of your app so you don't get mixed up with those folks when the hammer falls on them.
Use it as a fun experiment to see how much you can grow it not how much you can monetize. Formulate some assumptions and test them. I'd personally pick one of the countries and see if I can push installs in that country hard (might be difficult due to language issues). Try to figure out how people learn about your app and install it. Figure out what phones it is installed on and write a blogpost on using your app on that phone etc.
55k active users isn't bad. If you keep on growing someone will get interested even if you didn't monetize before (possibly even because you didn't) especially since it's not a "fad app" but something sustainable as long as there's low resource phones. [worst case you can use it if you ever want to apply at Facebook]
tl;dr: use it as your private growth-lab and learn a lot :)