Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDR/VB7NCcX0Z1hQIRduSZRTK9g/Y1F2n2hUOutwL3OplcM5Ul98NsKSlbf… (1,748 chars)"
  }
}