This endpoint creates a new exchange rate.
POST /exchange/rates
Content-Type: application/json
{ "buy": 100, "pair": "USD-NGN", "sell": 75000, "ttl": 60 }
application/json
{ "data": { "buy": 1200, "created_at": "2025-01-21T11:56:45Z", "entity": { "id": "397752fb-92e6-404a-b6e4-d9d72f1379f9", "type": "business" }, "id": "83b16397-d524-4619-b30f-e5e77b1b8d17", "pair": "USD-NGN", "sell": 1100, "ttl": 60, "updated_at": "2025-01-21T11:56:46Z" } }