Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFSZqEh7Jjl7FRTowqpdBEcLPYvG0fhsN1RVjbDOWBJOmYAqfh6vF5NCwZ/… (844 chars)"
  }
}