Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAON3S+fqBaQzveYs+E0HP6GpEO9aVi0fJNwXG2rnoB4Td8Ru7c0AvU1mGV… (844 chars)"
  }
}