Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE5lRgoqps/cEDJXTAWb8lKCiC1EM00oRlLM9/iaKSIL3fgTlcyNf5qa7EE… (844 chars)"
  }
}