curl --request PUT \
  --url https://api.rendernet.ai/pub/v1/characters/{character_id} \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <x-api-key>' \
  --data '{
  "asset_id": "ast_123abc",
  "character_type": "realistic",
  "prompt": "a female, european, young adult, muscular body, thick black hair, wearing formal clothes, mountains in the background. "
}'

{
  "data": {
    "character_type": "realistic",
    "input_image": "https://redernet-image-data.s3.amazonaws.com/input_images/ast_123abc.png",
    "name": "character_01",
    "prompt": "a female, european, young adult, muscular body, thick black hair, wearing formal clothes, mountains in the background. ",
    "id": "character_001"
  },
  "err": {}
}