Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFrbMJP/LtkfvWsO5l2j5JW1rXiNyaupE3zC0pYNsi4iTj+FgJMGvQCl9Bg… (844 chars)"
  }
}