Handle EVM endpoint Proxy

[tombeynon]

From conversation with @Galadrin

I've dig on the evm check:

HEALTH :  https://docs.velas.com/evm/rpc/#eth_chainid
curl --data '{"method":"eth_chainId","params":[],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST https://evm-cronos.crypto.org

{"jsonrpc":"2.0","id":1,"result":"0x19"} 
STATUS: https://docs.velas.com/evm/rpc/#eth_blocknumber

curl --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST https://evm-cronos.crypto.org

{"jsonrpc":"2.0","id":1,"result":"0x22bc76"}