Update merchant
Merchant Update
POST
/pay/merchant/updateUpdate an existing merchant under the agent account.
SDK method
merchantUpdate()ParametersRequest body
memberidstringrequiredMerchant ID to update
signstringrequiredsignMD5 signature (auto-generated when `apiKey` is configured)
Response
**200** — `PayMerchantUpdateResponse` via `getResult()`.