Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC6P1GBWCV7zKmDbt/lNzneWmS7MBZqXp4FoOfJ8LzUtQ9OUbkVjKN0FD4Y… (844 chars)"
  }
}