Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHiSjUTbaK2EFYRd0mWGrdVmQFNpqLROWd0MR6DY014LxN5MHLZgO4JXOvv… (844 chars)"
  }
}