curl --request PATCH \
  --url https://api.reply.io/v3/templates/{id} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '{
  "id": 12345,
  "name": "Sales Follow-up",
  "subject": "Re: Our previous conversation",
  "body": "Hi {{firstName}},\n\nI hope this email finds you well. I wanted to follow up on our previous conversation about...",
  "categoryId": 123
}'

{
  "id": 12345,
  "name": "Sales Follow-up",
  "subject": "Re: Our previous conversation",
  "body": "Hi {{firstName}},\n\nI hope this email finds you well. I wanted to follow up on our previous conversation about...",
  "categoryId": 123
}