The details for the merchant who receives the funds and fulfills the order. The merchant is also known as the payee.
email_addressstring<email>OptionalNote: Up to 64 characters are allowed before and 255 characters are allowed after the@sign. However, the generally accepted maximum length for an email address is 254 characters. The pattern verifies that an unquoted@sign exists.
merchant_idstring<account_id-2>Optional