Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH53QcOZL7xn0L43B4HCwE+o8OcNZwTJzP8mwBI1H9gpXZdS8Rk2A0AwrMZ… (844 chars)"
  }
}