Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG/2mZCFOLyN/68V1IZ3jrW4J6X0DYMmxbJ0mNHIWUJL0/RzuZHP8uYQY84… (844 chars)"
  }
}