Vehicle Serviced means that at that time and mileage the car was in the shop, (most likely at a dealership, as the dealer records are the only ones usually available). This is good to see that the mileage is not altered, but it really tells little else. Depending on the make of the car, you may be able to have the service department at a dealer pull up the service history. This will show what work was done, if it was done at a dealership!
it could be an oil change or anything – it just means they took the vehicle to a service facility
Be wary though it said the same for my camry after I sold it, I had it in bc the tranny was shuddering and they couldn’t replicate it. Ask why the vehicle was serviced and ask to see the documents.
Most likely it was routine maintenence, like an oil change or state inspection or something like that.