optional recipient address field on transfers in

[cajubelt]

(request from NodeWallet since they use a smart contract wallet)

[lastperson]

https://github.com/fiatconnect/specification/blob/main/fiatconnect-api.md#341111-request-body
address: {string} [REQUIRED]
An EIP-55 formatted address, representing the Celo address of the user to get the quote for. For contract-owned accounts, this should be the address of the contract itself.

This does not explicitly state if the specified address have to match the address that user logged in with. Could any address be specified there?