uint32 device_key
uint32 group_key
uint32 group_mask
# IPv4 destination. Leave empty to use the SDK broadcast address (255.255.255.255).
string destination_ip
# GVCP/PTP timestamp: upper 32 bits are seconds and lower 32 bits are nanoseconds.
# Zero sends the command immediately.
uint64 scheduled_time
---
# Success means that the SDK dispatched the command; Action Command has no device acknowledgment.
bool success
string message