Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFQ/2YebPb27YQ/a0JtnkNrqDwD3vLCM6pC2kqZnMFKuQXUI4z5MZZH5QzB… (844 chars)"
  }
}