put
https://api.sandbox.com/v1/beneficiaries//walletAddress
Updates or sets the beneficiary's external cryptocurrency wallet address where they will receive digital asset payouts. This should be an address owned and controlled by the beneficiary (such as a MetaMask wallet, hardware wallet, or exchange address). The address is validated for the specified blockchain network to ensure correct format and prevent sending funds to invalid addresses. Some addresses may require additional verification (such as a test transaction) before they can be used for withdrawals. Once set, this becomes the default destination for crypto payouts.