Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEP1nIBwqRDs+WT4VoBVqiDW6JNCXv4T/Ofb7nAR4VLvh/iyZgirNwZ/xM9… (844 chars)"
  }
}