In my understanding, one wallet has unique private key.
My question is:
(1) can many wallets exist in one node of MultiChain? For example, wallet A and wallet B both exist in the same node. And wallet A can send fund to wallet B.
(2) when wallet A send wallet B some fund, in the JSON-RPC API way, if I use sendassetfrom api or other similar apis, how and when do I use the private key of wallet A?
Thank you very much.