use specific payee

types.go

@@ -337,7 +337,7 @@ type (
 	PurchaseUnitRequest struct {
 		ReferenceID    string                      `json:"reference_id"`
 		Amount         *PurchaseUnitAmount         `json:"amount"`
-		Payee          Payee               `json:"payee,omitempty"`
+		Payee          PayeeForPurchaseUnitRequest `json:"payee,omitempty"`
 		Description    string                      `json:"description,omitempty"`
 		CustomID       string                      `json:"custom_id,omitempty"`
 		InvoiceID      string                      `json:"invoice_id,omitempty"`
@@ -569,6 +569,12 @@ type (
 		Email string `json:"email"`
 	}
 
+	// PayeeForPurchaseUnitRequest struct
+	PayeeForPurchaseUnitRequest struct {
+		EmailAddress string `json:"email_address"`
+		MerchantID   string `json:"merchant_id"`
+	}
+
 	// UserInfo struct
 	UserInfo struct {
 		ID              string   `json:"user_id"`