Broadcast messages have to go through the process of being manually approved before they are sent out at their scheduled time.
POST /v1/casts/broadcastHeaders{"Authorization":"Basic 5LQWBmQ1...FQD"}Body (JSON){"title":"New feature","body":"We are releasing super cool feature at 1PM CET","icon":"https://solflare.com/assets/logo-128.png","image":"https://solflare.com/assets/logo-128.png","platform":"all","topic":"general","actionUrl":"https://solflare.com","castAt":"2022-04-30T15:00:00.254Z"//UTC}Response{"data": {"_id":"123...","status":"pending","title":"New feature","body":"We are releasing super cool feature at 1PM CET","icon":"https://solflare.com/assets/logo-128.png","image":"https://solflare.com/assets/logo-128.png","platform":"all","topic":"general","actionUrl":"https://solflare.com","castAt":"2022-04-30T15:00:00.254Z"//UTCjso ... }}