How are invoices displayed in Nostr test lnbc2u1p3lrfywpp5zmx0xwzge8g9e8k2qrrfka44cwdyukpujnuu2mnz046f32vl7dlsdp8fehhxarjyq5yqnrfva58gmnfden4g6tsgfhhg2gcqzpgxqyz5vqsp5yw7663zuwfpv2lcr6n84exyxevye6ppcxzrsh2qxdkk74a7zc5fq9qyyssqe7tzwzsh73gx4u3eaedq3evr7y0w8z04qed5vg85tw2q8snj4ucj47rf0y3nk0fex0z9htt4t6theyu9fsn22270nedr3kpuxnjfgtcqez3t74