sudo dnf install distribution-gpg-keys
# You can also use `rpmkeys`, the difference is unknown.
sudo rpmkeys --import /usr/share/distribution-gpg-keys/rpmfusion/RPM-GPG-KEY-rpmfusion-free-el-9
rpmkeys -K libva-intel-driver-2.4.1-7.el9.x86_64.rpmReferences
- rpm-misc(8)
-K, --checksig
See and use rpmkeys(8).