curl --request GET \
  --url https://app-api.spikeapi.com/v3/userinfo \
  --header 'Authorization: Bearer <token>'

{
  "application_id": 123,
  "application_user_id": "<string>",
  "compat_application_client_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "compat_application_client_token": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created_at": "2023-11-07T05:31:56Z",
  "integrated_providers": [
    {
      "created_at": "2023-11-07T05:31:56Z",
      "is_integration_broken": true,
      "provider_integration_id": 123,
      "provider_slug": "strava"
    }
  ],
  "uid": "4fb7f176-4577-4127-b420-c1a3c9adb2b2"
}