Register a member

curl --request POST \
  --url https://api.onchainden.com/api/v1/members/registrations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Idempotency-Key: <x-idempotency-key>' \
  --data '
{
  "walletAddress": "0xabc...",
  "signature": "0xdef..."
}
'

const client = new DenClient({ apiKey: 'ck_live_...' });
// First get the payload
const { data: payload } = await client.getMemberRegistrationPayload('0xabc...');
// Sign with wallet (e.g., using viem)
const signature = await wallet.signMessage({ message: payload.messageToSign });
// Send signed message for registration
const { data: result } = await client.submitRegistration('0xabc...', signature);