List all subscriptions

{
  "type": "array",
  "description": "List of subscriptions",
  "items": {
    "type": "object",
    "description": "Subscription entry",
    "properties": {
      "active": {
        "type": "boolean",
        "description": "Is the subscription currently active"
      },
      "subscription_id": {
        "type": "string",
        "description": "the unique id for this subscription record"
      },
      "subscription_key": {
        "type": "string",
        "description": "The key value that the subscription references. E.g. a tag value or a repo name."
      },
      "subscription_type": {
        "type": "string",
        "description": "The type of the subscription"
      },
      "subscription_value": {
        "type": "string",
        "description": "The value of the subscription target"
      },
      "userId": {
        "type": "string",
        "description": "The userId of the subscribed user"
      }
    }
  }
}