How to set custom price via rest api

[aloknanone8804]

To set custom price i was using this payload but it is not updating  ,  what is way to do it?  

[
     {
          "sku": 'AZ8906',
          "qty": 5,
          "custom_price":"11.00",
          "original_custom_price":"11.00",
    }
]

[aloknanone8804]

Can anyone help me, I am very new to this and I have a deadline.

Please help.