He is writing:
>Zosimus Victoriae suae salutem. / Rogo te ut mihi succurras / aetati meae. Si putas me a[es non haberae, noli amare me.]
>Zosimus greets his Victory. I ask you to help me in my age. If you think I have no money, don't love me.
https://ancientgraffiti.org/Graffiti/graffito/AGP-EDR192887
I'd rather imagine an old man.