Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDPjZxJIVZAIvyp8J5an+Y8byYVaCjvlZ3gJxU2BDgimE+fZX5hB4fP2jQ7… (844 chars)"
  }
}