kling-v2.1-i2v-pro (image to video)

curl --location 'https://gptproto.com/api/v3/kwaivgi/kling-v2.1-i2v-pro' \
--header 'Content-Type: application/json' \
--header 'Authorization: sk-xxxx' \
--data '{   
    "prompt" : "The character in the picture walks to the anime garden to find a comb placed on the ground, without changing the proportion of the character'\''s face",
    "image": "https://oss.heyoos.com/ai-draw/user/-ead3cec3-de6b-4ed5-b38c-4d8707731686.png", 
    "guidance_scale": 0.5,
    "duration": 5
}'

{
  "error": {
    "message": "Invalid signature",
    "type": "401"
  }
}