How poll just one column in a table?

Hi, everyone. I'm trying to use reverb to refresh one column (computed column, not directly from database) I'm failed then, reading documentation, I seen poll method and, even if this is not my prefered aproach, is a functional aproach for me. Just poll data every 30s to get fresh values, but... The whole table? Any idea to get something like poll(columns: ['column', 'column' ]) I tryed my best to write this in english 🫣 I will accept any idea. I'm not good with livewire or frontend in general, but some of AI and google search cannbe help with details about the implementation