Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA3HEr+uEhU/nKK4MuhM8JbCe4KfK59Pc3CUFhMJ3yPa1R+v8kFZ7bAOiiM… (844 chars)"
  }
}