Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDTxFWvI272FZtYj5FNmXv9N95lV/3Yk8+AZ1/8i5sbLRJBJOzj4z6uHz/M… (844 chars)"
  }
}