Problem: Blocking operation on AsyncTask would not stop makes program halt

[damoncro]

For example, do SignPersonal multiple times (typical times is 3), game will halt until wallet returns reject or approve message.

[leejw51crypto]

how about,
if it's in the progress, return false?

manage the state in unreal engine actor side

[damoncro]

Please check cronos-labs/play-cpp-sdk#303