Project_list.json

{
  "res":[
    {
      "project_name": "pro1",
      "creator": "user1",
      "service_list": [
        {"service_name": "svc1", "creation_date": 1644620400}, 
        {"service_name": "svc2", "creation_date": 1644624000},
        {"service_name": "svc3", "creation_date": 1644627600}
      ]
    },
    {
      "project_name": "pro2",
      "creator": "user2",
      "service_list": [
        {"service_name": "svc4", "creation_date": 1644631200}, 
        {"service_name": "svc5", "creation_date": 1644634800},
        {"service_name": "svc6", "creation_date": 1644638400}
      ]
    }
  ]
}