Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGxA/7IisiKl1ZfIkZh7UHKdMN5qPLAV5HU9LLVmT2D+zgxEWBZ8JHsAx72… (844 chars)"
  }
}