curl --request POST \
  --url https://sandbox.nmbr.co/services/payroll/pay_rates/bulk/create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "business_entity_id": "<id>",
  "work_assignments": {
    "include": "all"
  }
}
'