JSON RPC Polygon example

1

I am a total beginner with RPC/curl
in docs you can find this example:

# Request
curl -X POST --data '{
    "id": 1337,
    "jsonrpc": "2.0",
    "method": "eth_call",
    "params": [{
        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675",
        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
        "gas": "0x76c0",
        "gasPrice": "0x9184e72a000",
        "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
        "value": "0x9184e72a"
    }]
}' https://mainnet.infura.io/v3/{projectId}

# Response
{
    "id": 1337,
    "jsonrpc": "2.0",
    "result": "0x"
}

My aim is to read a contract on Polygon.
Here is the contract address:
0xd0f3121A190d85dE0AB6131f2bCEcdbfcfB38891
([https://polygonscan.com/address/0xd0f3121a190d85de0ab6131f2bcecdbfcfb38891#readContract]
I want to get the totalSupply. What would the ‘Request’ and ‘Response’ look like?
Any help is very welcomed! cheers