{
  "$schema": "http://json-schema.org/draft-07/schema",
  "definitions": {
    "enterprise_id": {
      "type": "string"
    },
    "grid_migration_started": {
      "type": "object",
      "description": "learn more: https://api.slack.com/events/grid_migration_started",
      "properties": {
        "enterprise_id": {
          "$ref": "#/definitions/enterprise_id"
        },
        "type": {
          "const": "grid_migration_started"
        }
      },
      "example": {
        "enterprise_id": "EXXXXXXXX",
        "type": "grid_migration_started"
      }
    }
  }
}