curl --request GET \
  --url https://nini.monieswitch.com/wallet/customer/balance \
  --header 'Authorization: Bearer <token>'

{
  "status": true,
  "data": {
    "wallet": {
      "id": "2c6aa85f-e951-4271-8139-a26f8c532dcd",
      "tier": 1,
      "status": "ACTIVE",
      "accountName": "Adewale ChisoM",
      "availableBalance": 200,
      "bankName": "Xpress Wallet",
      "accountNumber": "4420752932",
      "walletBalance": 200,
      "totalChildAccounts": 0,
      "totalChildAccountBalance": 0,
      "totalBalance": 200
    }
  }
}