Creates a new message call transaction or a contract creation for signed transactions.
// Request curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"klay_sendRawTransaction","params":[{see above}],"id":1}' http://klaytn.blockpi.network/v1/rpc/your-api-key // Result { "jsonrpc": "2.0", "id":1, "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331" }