I'm converting my DAPP to Polygon from Ethereum. And currently we have a frontend system that lets users pay us for our services. We are doing this using the Metamask RPC API. But because we are no longer using Ethereum we have to get paid in Polygon. But using "eth_sendTransaction" can only send Ethereum and not Polygon. So my question is: Is there a way for our application to request via the Metamask RPC API to send Polygon to a specified address?