查询节点在线调用

{
"jsonrpc": "3.0",
"method": "chain_tvm",
"params": [
  "opcode=static&subcode=nodeinfo&begin=&len=&sliceno=10001",
  "encryp=none"
],
"id": "aa80aa0c6bb0c7d81ac7e5b3"
}