{
  "lexicon": 1,
  "id": "sh.tangled.feed.subscription",
  "defs": {
    "main": {
      "type": "record",
      "key": "tid",
      "record": {
        "type": "object",
        "required": [
          "subject",
          "createdAt"
        ],
        "properties": {
          "subject": {
            "type": "union",
            "refs": ["#uri", "#repo"],
            "closed": true
          },
          "collections": {
            "type": "array",
            "items": { "type": "string" },
            "description": "Optional collection NSIDs to filter which notifications are sent. Empty or absent means all collections."
          },
          "createdAt": {
            "type": "string",
            "format": "datetime"
          }
        }
      }
    },
    "uri": {
      "type": "object",
      "required": ["uri"],
      "properties": {
        "uri": { "type": "string", "format": "at-uri" }
      }
    },
    "repo": {
      "type": "object",
      "required": ["did"],
      "properties": {
        "did": { "type": "string", "format": "did" }
      }
    }
  }
}