Lifters is a reasonable guess. At 122K, most everybody starts making a little noise. It could be just an accessory, like the water pump, power steering pump, alternator starting to mis-behave. If you have access to an engine stethoscope, you might be able to narrow it down a bit based on what part of the engine the sound is coming from. I’d check all the fluid levels including the automatic transmission and power steering pump fluid just to make sure one of them being low is not the cause.