Read the account balance (Processors Only)

Example response

{
  "payment_account": {
    "account_guid": "ACT-283132a4-1401-486a-909e-1605f1623d11",
    "member_guid": "MBR-54feffb9-8474-47bd-8442-de003910113a",
    "user_guid": "USR-101ad774-288b-44ed-ad16-da87d522ea20",
    "account_name": "MX Bank Checking",
    "account_number": 6366816006,
    "account_type": "CHECKING",
    "available_balance": 1000,
    "balance": 1000,
    "created_at": "2022-03-17T20:38:58Z",
    "routing_number": 242722023,
    "updated_at": "2022-11-29T08:02:07Z"
  }
}