<?xml version="1.0" encoding="UTF-8"?>
<me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
<me:data type="application/atom+xml">
$data
</me:data>
<me:encoding>$encoding</me:encoding>
<me:alg>$algorithm</me:alg>
<me:sig key_id="$keyhash">$signature</me:sig>
</me:env>