In amber read me there's an example at the bottom.
In this note from @hzrd149 there's the code he uses in nostrudel

nostr:nevent1qqs0c74jq06uqee7avqpa0jes0flrdzgu7w05qg8wyzuzhwv5ddkjrgpzamhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuegzyqnxs90qeyssm73jf3kt5dtnk997ujw6ggy6j3t0jjzw2yrv6sy22qcyqqqqqqgkkca70 

 It's not working with Mull (firefox fork for android), only with chromium browsers. I think it's related to clipboard permissions