fgo-game-data/master/mstMasterMission.json

[{
    "id": 10001,
    "priority": 0,
    "startedAt": 1501491600,
    "endedAt": 1893423600,
    "closedAt": 1893423600,
    "imageId": 0,
    "name": ""
}, {
    "id": 100211,
    "priority": 0,
    "startedAt": 1596380400,
    "endedAt": 1596985199,
    "closedAt": 1597589999,
    "imageId": 0,
    "name": ""
}, {
    "id": 100212,
    "priority": 0,
    "startedAt": 1596985200,
    "endedAt": 1597589999,
    "closedAt": 1598194799,
    "imageId": 0,
    "name": ""
}]