Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBmcSElqFm/hSw7qboVMmEK5RbU2b8qbVsDn9LG2TBLUS2pj6TKsEJu0ugJ… (1,748 chars)"
  }
}