curl --request PUT \
  --url https://app.autoposting.ai/api-proxy/teams/members/{id}/brand-overrides/{brandId}/accounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountIds": [
    "acct_01HXYZ"
  ]
}
'

{
  "success": true
}