Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGMVTTvXX3XHFA9SA1+1RFGv6+6rxId3MQy6DMY+nFeUlkSO6K6DLT7uZiQ… (844 chars)"
  }
}