curl --request PUT \
  --url https://api.comm.com/api/v1/sms/routing/rates/{rate} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "rate": 123
}'

{
  "data": {
    "id": "<string>",
    "country_id": 123,
    "rate": 123,
    "upcoming_rate": 123,
    "rate_updated_at": "<string>",
    "sms_route_id": "<string>",
    "network_id": 123,
    "network_brand_id": "<string>"
  }
}