curl --request PUT \
  --url https://api.hubapi.com/crm-associations/v1/associations/delete \
  --header 'Content-Type: application/json' \
  --data '
{
  "fromObjectId": "<string>",
  "toObjectId": "<string>",
  "category": "<string>",
  "definitionId": "<string>"
}
'

{
  "fromObjectId": 25,
  "toObjectId": 100,
  "category": "HUBSPOT_DEFINED",
  "definitionId": 15
}