Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGfvJQ/evY3k6a5IdqyPUf0ZXJ19m0rCM1/lCW7IHuxaXUzAT9cZVm/ceJt… (844 chars)"
  }
}