Where can I find JSON-RPC model example that I could pass to the BitShares node?

[R]

You need to interact with a full node which provides RPC access.

[hmmmk]

I'm trying to interract with BitShares chain and I want to get any info from node. But in bitshares.org docs I didn't find any working JSON model. In all my queries the node returnes "405 Not Allowed". Any ideas is acceptable.