bsky-social-app/lexicons/app/bsky/notification/updateSeen.json

{
  "id": "app.bsky.notification.updateSeen",
  "defs": {
    "main": {
      "type": "procedure",
      "input": {
        "schema": {
          "type": "object",
          "required": [
            "seenAt"
          ],
          "properties": {
            "seenAt": {
              "type": "string",
              "format": "datetime"
            }
          }
        },
        "encoding": "application/json"
      },
      "description": "Notify server that the requesting account has seen notifications. Requires auth."
    }
  },
  "$type": "com.atproto.lexicon.schema",
  "lexicon": 1
}