Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD9pdjoWJaEsBFfFYvw2l+uBcKxLF1u/M0oEdw9j8auKkEt0cQ2RVuG5yw/… (844 chars)"
  }
}