Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8vN+cbw2aCkXh0oiRGErtYseiWoE1iEJY8oOUmHYfqzH+qSAy+BdEtFo/… (844 chars)"
  }
}