[
  {
    "id": "account-1",
    "name": "主账户",
    "privateKey": "${ACCOUNT_1_PRIVATE_KEY}",
    "address": "${ACCOUNT_1_ADDRESS}",
    "isActive": true
  },
  {
    "id": "account-2", 
    "name": "副账户",
    "privateKey": "${ACCOUNT_2_PRIVATE_KEY}",
    "address": "${ACCOUNT_2_ADDRESS}",
    "isActive": true
  }
]