Changes to List sub-account transactions

added the non-success response with the status 400

added the optional property success to the response with the 503 status

the response property pagination/current_page became required for the status 200

the response property pagination/per_page became required for the status 200

the response property pagination/total became required for the status 200

the response property pagination/total_pages became required for the status 200

the endpoint scheme security bearerAuth was added to the API

api operation id Getusertransactions removed and replaced with sub_accounts_transactions_list

added the new optional query request parameter page

added the new optional query request parameter per_page

endpoint added