Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGiNT3GyevaKhNw9MZrwBa/Zm8obKGfgnn93Zb6kWnGZWWB3yDAvst0zT9U… (844 chars)"
  }
}