{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/aerodatabox/refs/heads/main/json-structure/aerodatabox-subscription-contract-structure.json",
  "description": "Describes subscription",
  "type": "object",
  "properties": {
    "id": {
      "type": "uuid",
      "description": "Identifier of a subscription. \r\nUse this ID to control the subscription in future (e.g. update or delete)."
    },
    "isActive": {
      "type": "boolean",
      "description": "Specifies if the subscription is active"
    },
    "billingType": {
      "$ref": "#/components/schemas/SubscriptionBillingType"
    },
    "activateBeforeUtc": {
      "type": "datetime",
      "description": "Time (UTC) before which subscription must be activated (may be applicable to \r\nsome non-active newly created subscriptions)",
      "nullable": true
    },
    "expiresOnUtc": {
      "type": "datetime",
      "description": "Time (UTC) when subscription expires and will be removed.\r\n\r\nIf not specified, subscription never expires.",
      "nullable": true
    },
    "createdOnUtc": {
      "type": "datetime",
      "description": "Time (UTC) when subscription was created"
    },
    "subject": {
      "$ref": "#/components/schemas/SubscriptionSubjectContract"
    },
    "subscriber": {
      "$ref": "#/components/schemas/SubscriberContract"
    },
    "notices": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Additional messages",
      "nullable": true
    }
  },
  "required": [
    "createdOnUtc",
    "id",
    "isActive",
    "subject",
    "subscriber"
  ],
  "additionalProperties": false,
  "name": "SubscriptionContract"
}