Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCfbIjRHjHNVq8zP1uhxtipZBF3K+UVZq+Txv7VkJ0TkiXlYNQTKaYal8XF… (844 chars)"
  }
}