Support nostr content providers
#grownostr

nostr:nevent1qqsvwn4sufz3af7j82r5u7u05nnvuat4fkxq09cq8tl4puh2wrc8jcspz3mhxue69uhhyetvv9ujuerpd46hxtnfdupzq5x9exxvcvw2nu0026j50t7yedypjhl9vq7577r55gsah9jcvlywqvzqqqqqqymvkjfj