Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH/E0ViUKq+0FwpRT/uj1vqu1f7pAq9yOBsrItvwgZQ5z2sppEI+q7GKIeJ… (844 chars)"
  }
}