curl --request DELETE \
  --url http://localhost:3000/organizations/{orgId}/members/{memberId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "reason": "<string>"
}
'

{
  "statusCode": 123,
  "message": "OK",
  "data": {
    "message": "<string>",
    "membership": {}
  }
}