Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFc+ML+4/lm+4trZD5v01v2/KaaHohf+P4tjkL1JuE3Zn/t6l8oN7hVl7zL… (844 chars)"
  }
}