curl --request POST \
  --url https://api.powertokens.ai/v1/videos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "wan2.7-r2v",
  "prompt": "让角色向镜头挥手并缓慢前行。",
  "seconds": "5",
  "size": "1080P",
  "subject_reference": [
    {
      "type": "character",
      "image": [
        "https://example.com/assets/subject-reference.png"
      ]
    }
  ]
}
'

{
  "id": "<string>",
  "task_id": "<string>",
  "object": "video",
  "model": "<string>",
  "status": "pending",
  "progress": 123,
  "created_at": 123
}