curl --request GET \
  --url https://api.lava.so/v1/customers/{customer_id}/subscription \
  --header 'Authorization: Bearer <token>'

{
  "subscription": {
    "subscription_id": "<string>",
    "plan_id": "<string>",
    "name": "<string>",
    "period_amount": "<string>",
    "included_credit": "<string>",
    "cycle_start_at": "2023-11-07T05:31:56Z",
    "cycle_end_at": "2023-11-07T05:31:56Z",
    "credits": {
      "total_remaining": "<string>",
      "cycle_remaining": "<string>",
      "bundle_remaining": "<string>"
    },
    "pending_change": {
      "effective_at": "2023-11-07T05:31:56Z",
      "plan_id": "<string>",
      "name": "<string>",
      "period_amount": "<string>",
      "included_credit": "<string>"
    }
  }
}