In amber read me there's an example at the bottom.
In this note from nostr:npub1ye5ptcxfyyxl5vjvdjar2ua3f0hynkjzpx552mu5snj3qmx5pzjscpknpr there's the code he uses in nostrudel

nostr:nevent1qqs0c74jq06uqee7avqpa0jes0flrdzgu7w05qg8wyzuzhwv5ddkjrgpzamhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuegzyqnxs90qeyssm73jf3kt5dtnk997ujw6ggy6j3t0jjzw2yrv6sy22qcyqqqqqqgkkca70