It's could be as straightforward as "paste token here" in the beginning. Eventually (I hope soon), we will have NWC for ecash operations and ecash payment requests so that it's more convenient to pay ( nostr:nprofile1qqsdmup6e2z6mcpeue6z6kl08he49hcen5xnrc3tnpvw0mdgtjemh0spz3mhxue69uhhyetvv9ujumn0wd68ytnzvuq36amnwvaz7tmjv4kxz7fwdehhxarj9emkjun9v3hx2apwdfcqzynhwden5te0danxvcmgv95kutnsw43qvqle0h is the man here).