19-19-504. Protection of benefits from legal process. Except for execution or withholding for the payment of child support or for the payment of spousal support for a spouse or former spouse who is the custodial parent of the child, the benefits provided for in this part are not subject to execution, garnishment, attachment, or the operation of bankruptcy, insolvency, or other process of law and are unassignable except as specifically provided in 19-19-505.