Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBBB2uJqhI3hWP47kG+7IwzaJuvUWS5yvTTqneYc+0A5DgthDfsrfqXY0xj… (844 chars)"
  }
}