Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGPRYkMu5cIIZLcyoU6cmF2kwDXIfo7XVBsEnx72qJkSXcxU4hAeG/9c6aZ… (844 chars)"
  }
}