curl --request POST \
  --url https://api.simplex.sh/get_session_store \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-API-Key: <api-key>' \
  --form session_id=3c90c3cc-0d44-4b50-8888-8dd25736052a

{
  "succeeded": true,
  "session_store": [
    {}
  ]
}