Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHAq0DyB4VgFQc5+1WQqD6K7YTJNyl/hFXNozhgN4PQ8TZX3F1acY8ETuPV… (844 chars)"
  }
}