Would you happen to know how max_accepted_payout is serialized?
Corresponding bytes: 00ca9a3b00000000|0353424400000000

I'm only curious about the first 8bytes. How does 1000000 become 00ca9a3b00000000?

The second 8bytes is obviously precision(03)+SBDsymbol(534244)+(00000000)

Just figured it out! I wasn't multiplying the amount (1000000) by (10*precision) :)

My claim_reward_balance operation is still having issues serializing the assets it seems ... Would you happen to have a serialized example of what this operation looks like?