I've finished the bounty. My custom subgraph is deployed here: https://explorer.subquery.network/subquery/OxHimanshu/frame-subql. It tracks all the NFTs minted on base. 
My Github is: https://github.com/OxHimanshu/farcaster-nft-minter/tree/main
You can Interact with the frame here: https://starling-apt-ideally.ngrok-free.app

Pioneering fast, flexible and scalable web3 infrastructure⚡ Powering teams on Ethereum, Base, Polkadot, Cosmos, AVAX, Near & 150+ more ⛓

I've built a frame to mint NFTs directly via Wrapcast on Base. Do check it out and mint guys.

I've built a frame to mint NFTs directly via Wrapcast on Base. Do check it out and mint guys.

https://starling-apt-ideally.ngrok-free.app

S;eth/acc

@sachin12eth