curl --request POST \
  --url https://api.example.com/api/v2/webhooks/{id}/credentials \
  --header 'Content-Type: application/json' \
  --data '
{
  "token": "<string>",
  "signingToken": "<string>",
  "username": "<string>",
  "password": "<string>"
}
'

{
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "hasSigningToken": true
  },
  "meta": {
    "requestId": "<string>",
    "timestamp": "<string>"
  }
}