If you are subscribed to the market stream you are receiving price_change events like these:
{| from web3 import Web3 | |
| from web3.constants import MAX_INT | |
| from web3.middleware import geth_poa_middleware | |
| rpc_url = "" # Polygon rpc url | |
| priv_key = "" # Polygon account private key (needs some MATIC) | |
| pub_key = "" # Polygon account public key corresponding to private key | |
| chain_id = 137 |