curl --request PUT \
  --url https://api.utage-system.com/v1/funnels/{funnel_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "memo": "<string>",
  "js_head": "<string>",
  "js_body_top": "<string>",
  "js_body": "<string>"
}
'

{
  "data": {
    "id": "<string>",
    "name": "<string>",
    "memo": "<string>",
    "js_head": "<string>",
    "js_body_top": "<string>",
    "js_body": "<string>"
  }
}