Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG8eZTCQU1eH2bfRRcVZh4wopv9dZ7+cdxPr7KgSu4Q8iub4aLUFZHQKEBj… (844 chars)"
  }
}