Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHZ9e5rygEd2mShKcNRrwVmx5C9k1EB08TZQ60fXCwLclKrILy/D5S3vLZX… (844 chars)"
  }
}