curl --request PATCH \
  --url https://clientapi.retailgrid.io/v1/competitor_prices/{entity_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "product_id": "<string>",
  "promo_price": 123,
  "currency": "<string>",
  "source_url": "<string>",
  "competitor_sku": "<string>",
  "barcode": "<string>",
  "status": "<string>",
  "stock": 123,
  "competitor_name": "<string>",
  "observed_at": "2023-11-07T05:31:56Z",
  "regular_price": 123,
  "effective_price": 123
}
'

{
  "id": 123,
  "competitor_name": "<string>",
  "observed_at": "2023-11-07T05:31:56Z",
  "regular_price": "<string>",
  "effective_price": "<string>",
  "product_id": "<string>",
  "promo_price": "<string>",
  "currency": "<string>",
  "source_url": "<string>",
  "competitor_sku": "<string>",
  "barcode": "<string>",
  "status": "<string>",
  "stock": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}