Zephyr Cloud API - No way to know last updated date for executions

with zephyr rest api, there is no field that says last updated date for an execution record. For executed cases, executedOn can be a workaround, but no way to know if an unexecuted record was last updated when.

referring to : https://prod-api.zephyr4jiracloud.com/connect/public/rest/api/1.0/executions/search?executionId=