curl --request POST \
  --url https://api.getgranite.ai/api/mig/instances/list \
  --header 'Content-Type: application/json' \
  --data '
{
  "mig_name": "<string>"
}
'

{
  "status": "<string>",
  "message": "<string>",
  "instances": [
    {}
  ]
}