Generate Access Token

curl --location 'https://api-sandbox.klavi.ai/token' \
--header 'Accept: application/json' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data '{
  "grant_type": "String",
  "scope": "String",
  "client_id": "String",
  "client_secret": "String"
}'