import requests

url = "https://{FUSION HOST}/api/subscriptions/{id}"

headers = {"Authorization": "Basic <encoded-value>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "resource": "<string>",
  "topic": "<string>",
  "numberOfListenerThreads": 123,
  "maxRetries": 123,
  "initialPosition": "<string>",
  "contextProperties": {},
  "id": "<string>"
}