Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE4XMqj4PS8H6BIv2EV8AYPZ1hvVdixCWGUBMYYiEbAi1b4u2wM8JId6Fvj… (844 chars)"
  }
}