Always remain on the top of the ethereum chain

[ankitchiplunkar]

Is your feature request related to a problem? Please describe. Currently there is no method to subscribe to new blocks and push them in the psql tables. Things that are required:

1. Provide a reliable stream of blocks, using:
   • Either using https://github.com/ethereumjs/ethereumjs-blockstream
   • Or use multiple nodes in parallel (local node and an infura node)
2. Add a websocket listner to get new blocks.

Describe the solution you'd like Would prefer to build a library similar to https://github.com/ethereumjs/ethereumjs-blockstream using web3.py.

Additional context This would be needed to be always up-to date with the chain.