curl --request POST \
  --url https://api.decodahealth.com/inventory/members/update-billing-date \
  --header 'API-KEY: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'TENANT: <tenant>' \
  --data '
{
  "memberId": "<string>",
  "nextBillingDate": "2023-11-07T05:31:56Z",
  "comment": "<string>"
}
'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}