Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHM3UuiZHbXe2FKV0sQTzDTFnX1OFVbWAq7XE044cfMN3AfFLzt9OuD7JzX… (844 chars)"
  }
}