Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF+TNJd6DZrIF6WPuVNPxFV5vh3f/FDf5zy4iv0VmxDanQYFZBRnCYjhZCM… (844 chars)"
  }
}