curl --request GET \
  --url http://localhost:8000/api/v1/subscriptions/{subscription_id} \
  --header 'Authorization: Bearer <token>'

{
  "google_ads_customer_id": 123,
  "subscription_plan_id": 123,
  "starts_at": "2023-11-07T05:31:56Z",
  "expires_at": "2023-11-07T05:31:56Z",
  "id": 123,
  "date_added": "2023-11-07T05:31:56Z",
  "date_updated": "2023-11-07T05:31:56Z",
  "subscription_plan": {
    "name": "<string>",
    "price": "<string>",
    "id": 123,
    "date_added": "2023-11-07T05:31:56Z",
    "date_updated": "2023-11-07T05:31:56Z",
    "image_url": "<string>",
    "modules": [
      {
        "constraint": 123,
        "analysis_frequency_hours": 123,
        "id": 123,
        "date_added": "2023-11-07T05:31:56Z",
        "date_updated": "2023-11-07T05:31:56Z",
        "is_autopilot_enabled": false
      }
    ]
  },
  "cancelled_at": "2023-11-07T05:31:56Z"
}