Hi,
OS used is AlmaLinux 9.0.
I tried to install the appliance with "hosted-engine", but unfortunately it complained about invalid GPG keys.
The last 2 lines of the Key block seem strange.
How can I fix this?

I  get the following message:
[root@master ~]# yum install ovirt-engine-appliance
Last metadata expiration check: 3:08:01 ago on Wed 12 Oct 2022 05:38:43 PM EDT.
Dependencies resolved.
====================================================================================================================================
 Package                             Architecture        Version                               Repository                      Size
====================================================================================================================================
Installing:
 ovirt-engine-appliance              x86_64              4.5-20220419160254.1.el9              ovirt-45-upstream              1.6 G

Transaction Summary
====================================================================================================================================
Install  1 Package

Total download size: 1.6 G
Installed size: 1.6 G
Is this ok [y/N]: y
Downloading Packages:
ovirt-engine-appliance-4.5-20220419160254.1.el9.x86_64.rpm                                           17 MB/s | 1.6 GB     01:36
------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                15 MB/s | 1.6 GB     01:45
oVirt upstream for CentOS Stream 9 - oVirt 4.5                                                      682 kB/s | 2.9 kB     00:00
Importing GPG key 0xFE590CB7:
 Userid     : "oVirt <infra@ovirt.org>"
 Fingerprint: 31A5 D783 7FAD 7CB2 86CD 3469 AB8C 4F9D FE59 0CB7
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-oVirt-4.5
Is this ok [y/N]: y
Key import failed (code 2). Failing package is: ovirt-engine-appliance-4.5-20220419160254.1.el9.x86_64
 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oVirt-4.5
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'yum clean packages'.
Error: GPG check FAILED

Here is a part of the GPG key:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (GNU/Linux)

mQENBFM3+3YBCADTLqGw5hI0whRPeN0hSjpaZ2yNNtVzgqj8/EFQ9IfR7GasHz/4
kkT3cpKXZygo0AIVEe5dkrcYXF+9C6bowiuGZG+9G6j8MXneunRv7S0mv1mnx7MW
[snip]
FFm7Fr9czelRSW+NCUvvtKKFG612VvwSSU/u8DarGdLnrKxJ5ito7Pd+n3ZB1YVy
sfxDvnYN
=SxBW
-----END PGP PUBLIC KEY BLOCK-----