Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDJBet1nQkpxrOGT4Gq6bZIG/Z8yZKXUyZqkeD7qP/Y+2pNSwMtDzneGRZJ… (844 chars)"
  }
}