curl --request POST \
  --url https://createkit.b3.fun/referrers \
  --header 'Content-Type: application/json' \
  --data '{
  "referrer_id": "<string>",
  "wallet_address": "<string>",
  "message": "<string>",
  "signature": "<string>"
}'

{
  "success": true,
  "message": "<string>"
}