When I try your script I get:

HTTP/1.1 403 Forbidden
...
{"state":"error","message":"","data":null}
[download]

When I go to http://www.tianyancha.com/company/398459114 in my browser I am re-directed to http://antirobot.tianyancha.com/captcha/verify where I need to fill in a captcha.

So it looks like the page is designed to prevent you from doing what you want (hence the "antirobot" in the URL - not a relative :)