// Request
curl https://zksync-era.blockpi.network/v1/rpc/your-rpc-key -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x30ccf7338f608f68d3d20ab878a1be5f902047df","latest"],"id":1}'
// Result
{
"jsonrpc": "2.0",
"result": "0x0",
"id": 1
}