L2 round-trips through JSON, so timestamp (Date) arrives as a string and balance (BigNumber) loses its runtime shape on cross-process / post-L1 reads. Store a JSON-safe projection and rehydrate it on read.
timestamp
balance
L2 round-trips through JSON, so
timestamp(Date) arrives as a string andbalance(BigNumber) loses its runtime shape on cross-process / post-L1 reads. Store a JSON-safe projection and rehydrate it on read.