{
  "operand": "AND",
  "rules": {
    "RULE_PRODUCT_QUANTITY": {
      "criteria": {
        "product_quantity": {
          "type": "number",
          "params": {
            "operator": "not_equals",
            "value": [
              10,
              null
            ]
          }
        }
      }
    }
  }
}