loadrunner send json request

1 web_custom_request("Update Todo",
2         "URL=http://localhost:3000/todos/3",
3         "Method=PUT",
4         "Resource=0",
5         "EncType=application/json",
6         "Mode=HTTP",
7         "Body={\"id\":3, \"isFinished\":false,\"todoText\":\"Updated the name\"}",
8         LAST);