Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE5rGp/vfOyz04F2h4cUhbLBo3q0tC/Um6zbjXbslRoKQs/GEuF7XYg6hMj… (844 chars)"
  }
}