Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGY1UiV7E0vGmeUa4/+Em5JWmeFy4+InmfPh5/5JGvO0AVPG8/RP2Hj3SC3… (844 chars)"
  }
}