Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGTsjJL3hj221YwlMJ8f5kKpYM8pjSntcAUWl+e5HsVgmA6Qm1GtEhQ4EW/… (844 chars)"
  }
}