How to add serial numbers for inventory adjustment of a particular item

When trying to add a serial number using Inventory adjustment via API in Postman I am facing an error like:

   {
  
   "code": 
   2205,
  
   "message": 
   "The serial number value cannot be left empty. Please enter a valid input."
  
   }
   
   please help me with proper format to add serial numbers into the json.
   
   this the json prepared by me
   
     {
    
      "date": "2019-09-11",
    
      "reason": "Extra Stock",
    
      "description": "",
    
      "reference_number": "Test-IA-123",
    
      "adjustment_type": "quantity",
    
      "line_items": [
    
     {
    
      "item_id": 519558000000686015,
    
      "name": "Acer 19.5-inch LED Monitor (K202HQL-AB)",
    
      "quantity_adjusted": 1,
    
      "item_total": 15,
    
      "unit": "qty",
    
      "is_combo_product": false,
    
      "adjustment_account_name": "Cost of Goods Sold",
    
      "warehouse_id": 519558000000076101,
    
      "warehouse_name": "QSAI",
    
      "serial_number_value":"TPS1234AMZ"
    
      }
    
      ]
    
     }