This is quite impossible, of course. Some questions come to mind...
When the nurse splits a vial into 6 (varies) doses, how do they ensure each gets a microchip?
How is it powered?
Wouldn't it be easier for "them" to just use your phone, which already has a microphone, GPS radio, cellular/wifi/bluetooth connection, and battery? (not that I'm trying to encourage another conspiracy theory!)
Who puts the microchip in the vaccine? Is it the pharmaceutical company? The government? Which government(s)? What does this cost?
Why are the world's largest technology companies so far behind? An iPhone weighs about 200 grams... yet "they" are able to get a GPS tracker into a vaccine dose that weighs 0.3 grams when prepared (without being a noicible component of that dose!)?