Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwLTx8KnM26J8UmBhjk41P8Tb3OYkjXYV8DGq1ohhBrjgG5dv+XKaZSX60lZ… (844 chars)"
  }
}