Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCT7Hw/ZLuZfp5q5FrQp02j1dEu7qSk06nmS3MCsWIGkGIAVujBjyO4jAzM… (844 chars)"
  }
}