Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGb1N/zdx19Hu5Ld5tEtWy9d4C7as3rZF8+9JmFOU8PKSBgcs5QfI6h1zCr… (844 chars)"
  }
}