Facing issues in reown wallet connect for offramp

[Xsvampire3]

In old version of wallet connect offramp working fine but when I upgraded to reown appkit version I am getting issues, how can I do send/sign transaction using wagmi. Please help with any tutorial available for updated version changes. Basically we want to do after user connects wallet, he enters amount of token he want to sell and then we creating order for them and pass amount and buy token address , then in user wallet he will get transaction sign request and after he approves tokens will get transferred to our wallet from users wallet and we send them inr.