How to backup and restore fprintd fingerprints?

I have configured fprintd on Arch Linux by following the [wiki](https://wiki.archlinux.org/title/fprint) and enrolled fingerprints with fprintd-enroll. According to this [question](https://unix.stackexchange.com/questions/644237/where-does-fprint-store-fingerprints) the fingerprints should be stored at /var/lib/fprint/ and /etc/fprintd.conf doesn't tell me anything. The only file in /var/lib/fprint/ is strongbad/synaptics/590ac910c956/7 with size 118 bytes and does not look like a fingerprint to me FP3^A^@^@^@synaptics^@590ac910c956^@^A^Gstrongbad^@^@FP1-20240227-7-2FA486E8-strongbad^@^@^@^?F^K^@^AFP1-20240227-7-2FA486E8-strongbad^> How do I backup and restore the fignerprints?