curl --request POST \
  --url https://api.gcore.com/cloud/v1/lifecycle_policy/{project_id}/{region_id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "action": "volume_snapshot",
  "name": "schedule_1",
  "schedules": [],
  "status": "active",
  "volume_ids": [
    "3ed9e2ce-f906-47fb-ba32-c25a3f63df4f"
  ]
}'

{
  "action": "volume_snapshot",
  "id": 1,
  "name": "schedule_1",
  "project_id": 1,
  "region_id": 1,
  "schedules": [
    {
      "day": "5",
      "day_of_week": "mon,fri",
      "hour": "0, 20",
      "id": "1488e2ce-f906-47fb-ba32-c25a3f63df4f",
      "max_quantity": 2,
      "minute": "30",
      "month": "1,6",
      "owner": "lifecycle_policy",
      "owner_id": 1,
      "resource_name_template": "reserve snap of the volume {volume_id}",
      "retention_time": {
        "days": 0,
        "hours": 2,
        "minutes": 1,
        "weeks": 0
      },
      "timezone": "UTC",
      "type": "cron",
      "user_id": 12,
      "week": "1"
    }
  ],
  "status": "active",
  "user_id": 11,
  "volumes": [
    {
      "volume_id": "3ed9e2ce-f906-47fb-ba32-c25a3f63df4f",
      "volume_name": "test schedule"
    }
  ]
}