curl --request POST \
  --url 'https://api.flashcat.cloud/member/invite?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "members": [
    {
      "member_name": "Charlie",
      "email": "charlie@example.com",
      "locale": "en-US",
      "time_zone": "Asia/Shanghai",
      "role_ids": [
        6
      ]
    }
  ]
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "items": [
      {
        "member_id": 5068740052131,
        "member_name": "Charlie"
      }
    ]
  }
}