{
  "namespace": "qmp.envelope",
  "type": "record",
  "name": "envelope",
  "fields": [
    {"name": "schema_id", "type": "string"},
    {"name": "message_id", "type": "string"},
    {"name": "timestamp", "type": "long"},
    {"name": "writer_host", "type": "string"},
    {"name": "writer_app", "type": "string"},
    {"name": "trace_id", "type": ["null", "string"], "default": null},
    {"name": "organization_id", "type": ["null", "string"], "default": null},
    {"name": "payload", "type": {
      "type": "record",
      "name": "payload",
      "fields": [
        {
          "name": "brandId",
          "type": "string"
        }
      ]
    }}
  ]
}