Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGMeO/9f6QR1xCXBVyknPEuZCRVU3mDxjWBl4PxeXLaPVZT0Uo35Tn4wYpM… (844 chars)"
  }
}