Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEBDcNJYpG2lZ4QIBW8UNxSPZpi/lt+EZ3/LlbSIA0aFTmZImfkf1tZc9Va… (844 chars)"
  }
}