curl --request POST \
  --url https://api.example.com/members/{app_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "<string>"
}
'

{
  "id": "<string>",
  "user_id": "<string>",
  "email": "<string>",
  "role": "owner",
  "user": {
    "id": "<string>",
    "username": "<string>",
    "first_name": "<string>",
    "last_name": "<string>"
  },
  "app": {
    "id": "<string>",
    "name": "<string>",
    "type": "individual",
    "kyc_return_url": "<string>",
    "use_explorer": true,
    "app_fee": 123,
    "is_member": true,
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  },
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "invite_token": "<string>"
}