Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFNzJckR6WjkBNhYngvP7Q7/LlY4YTDXIrdNyVpjR2dHEjM0gFGm2S6QZFn… (844 chars)"
  }
}