Retrieve Subscription

{ id: 'sub_HWlmmt7y1cgiPA',
      object: 'subscription',
      application_fee_percent: null,
      billing_cycle_anchor: 1593042184,
      billing_thresholds: null,
      cancel_at: null,
      cancel_at_period_end: false,
      canceled_at: null,
      collection_method: 'charge_automatically',
      created: 1593042184,
      current_period_end: 1595634184,
      current_period_start: 1593042184,
      customer: 'cus_HWlmp2Znj3o344',
      days_until_due: null,
      default_payment_method: null,
      default_source: null,
      default_tax_rates: [],
      discount: null,
      ended_at: null,
      items:
       { object: 'list',
         data: [ [Object], [Object] ],
         has_more: false,
         total_count: 2,
         url: '/v1/subscription_items?subscription=sub_HWlmmt7y1cgiPA' },
      latest_invoice: 'in_1GxiFBAp5DSyFUHyFOFmBgx4',
      livemode: false,
      metadata:
       { group_id: 'rygGSDb0I',
         drive_id: '528a3540-d637-4859-85ee-484a110accb8' },
      next_pending_invoice_item_invoice: null,
      pause_collection: null,
      pending_invoice_item_interval: null,
      pending_setup_intent: null,
      pending_update: null,
      plan: null,
      quantity: null,
      schedule: 'sub_sched_1GxiFKAp5DSyFUHyj0tD1UzY',
      start_date: 1593042184,
      status: 'active',
      tax_percent: null,
      transfer_data: null,
      trial_end: null,
      trial_start: null }