Search tickets by state ( REST API + JSON + PYTHON)

I'm trying to use Service Desk Plus v3 API, to get tickets by state.

I'm using Python + JSON.

The following code runs, and returns some tickets, but ignores the filters. Can someone show me a working example? Thanks in advance.

import requests
import urllib3
import json

myUrl = 'https://192.168.X.X:8080/api/v3/requests'
myToken = '9E86563E-AB0B-41D2-BE5B-3D3A516E24B6'
myHead = {'Authtoken': myToken}

payload= {
        "list_info": {
            "row_count": 20,
            "start_index": 1,
            "sort_field": "subject",
            "sort_order": "asc",
            "search_fields": {
            "subject": "New hire",
                "priority.name": "high"
            },
            "filter_by": {
                "status.name": "Open"
            }
        }
    }

response=requests.get(myUrl, headers=myHead, params=payload, verify=False)
data=response.json()
print(json.dumps(data, indent=4))