Simple Stop Loss order via CURL

Maybe that’s just me but how does the current curl specification for stop_loss look like? The blog entry for bracket orders seems to be deleted:

https://alpaca.markets/blog/bracket-orders-on-alpaca/

I’m currently using this:

curl https://paper-api.alpaca.markets/v2/orders -s -H "APCA-API-KEY-ID: " -H "APCA-API-SECRET-KEY: " -d '{"symbol":"ISEE","buy":"sell","time_in_force":"cls","extended_hours":false,"qty":"1716","type":"market", "stop_loss": {"stop_price": 4.27}}

The JSON I get back looks like this though (that was for a diff symbol but same order):

[id] =>  
    [client_order_id] =>  
    [created_at] => 2020-05-28T16:32:18.069399Z
    [updated_at] => 2020-05-28T16:32:18.069399Z
    [submitted_at] => 2020-05-28T16:32:18.036812Z
    [filled_at] => 
    [expired_at] => 
    [canceled_at] => 
    [failed_at] => 
    [replaced_at] => 
    [replaced_by] => 
    [replaces] => 
    [asset_id] => d5f668a3-682f-474a-84e2-d340593dd94c
    [symbol] => BKR
    [asset_class] => us_equity
    [qty] => 421
    [filled_qty] => 0
    [filled_avg_price] => 
    [order_class] => 
    [order_type] => market
    [type] => market
    [side] => sell
    [time_in_force] => cls
    [limit_price] => 
    [stop_price] => 
    [status] => accepted
    [extended_hours] => 
    [legs] => 

Appreciate any help!