Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC3gAVd9bkNd5tSgdo/a7Z4WJbHzJtiDWxgotKl9QeL5zuK6vFg0z9joT9x… (844 chars)"
  }
}