The fedora 32 key shipped in distribution-gpg-keys-1.33-1.fc32.noarch has a syntax error. There's two spaces at the end of the first line that make it invalid This error was in fedora-repos as well, but has since been fixed.
https://github.com/xsuchy/distribution-gpg-keys/pull/23 has the trivial fix. Hopefully it's (at least slightly) easier to merge that than it is to commit the fix manually. ;)
https://bodhi.fedoraproject.org/updates/FEDORA-2019-6777d6aa3d