{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "properties": {
        "time": {
            "type": "string",
            "format": "date-time"
        },
        "relayId": {
            "type": "string"
        },
        "data": {
            "type": "object",
            "patternProperties": {
                "^[0-9a-zA-Z_-]{1,255}$": {
                    "type": [
                        "number",
                        "string",
                        "boolean"
                    ]
                }
            },
            "additionalProperties": false
        }
    },
    "required": [
        "data"
    ],
    "additionalProperties": false
}