Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDZHVGhi7fPAxDz/tdQpZrMDt4DVoMD+H2wbKAp1AjzxXtYJ5MjqsHK2cn2… (844 chars)"
  }
}