Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGRdlsRBNoCy7JyUCodfe9npyVSPmAGVqP0BoS/CtTBnEOgGdTZtT1JgvXz… (844 chars)"
  }
}