Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC/79kFJjCfhtPEXxzJi1aEEZkjuld1NtRmi8eDu6meM0pdTY8ZECPFt3ZJ… (1,748 chars)"
  }
}