{
    "id": "http://schemas.wbeme.com/json-schema/eme/accounts/mixin/account-ref/1-0-0.json#",
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "properties": {
        "account_id": {
            "type": "string",
            "pattern": "^[\\w\\/\\.:-]+$",
            "description": "The EME account that this message is associated with.",
            "pbj": {
                "type": "identifier",
                "rule": "single"
            }
        }
    },
    "additionalProperties": true
}