Unable to call WalletConnectSharp/Signin/Engine.Request<T,TR> from unity

[Anand-CIS]

Hello,

I am calling the "personal_sign" Ethereum RPC method to get EIP 191 Ethereum signed signature after getting successful session through wallet connect metamask wallet.

But every time I am getting internal error with code "4294934693". I have created separated class as described in the doc JSON_RPC_REQUEST & JSON_RPC_RESPONSE contain all the data for personal_sign as mentioned in this link https://docs.walletconnect.com/2.0/advanced/rpc-reference/ethereum-rpc but I am getting error Internal error "message one or more error occured". I am attaching screenshot for the same.