Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGJVMdM3+/3CFw7MRXkI5BgYVwehb88FrNKq3pg4A/wJA9CmtD7UHk5xLWV… (844 chars)"
  }
}