curl --request POST \
  --url https://api.withorb.com/v1/alerts/subscription_id/{subscription_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "thresholds": [
    {
      "value": 123
    }
  ],
  "type": "usage_exceeded",
  "metric_id": "<string>"
}
'

{
  "id": "<string>",
  "type": "\"usage_exceeded\", \"cost_exceeded\", \"credit_balance_depleted\", \"credit_balance_recovered\", or \"credit_balance_dropped\"",
  "created_at": "2023-11-07T05:31:56Z",
  "enabled": true,
  "thresholds": [
    {
      "value": 123
    }
  ],
  "customer": {
    "id": "<string>",
    "external_customer_id": "<string>"
  },
  "plan": {
    "id": "m2t5akQeh2obwxeU",
    "external_plan_id": "m2t5akQeh2obwxeU",
    "name": "Example plan",
    "plan_version": "<string>"
  },
  "subscription": {
    "id": "<string>"
  },
  "metric": {
    "id": "<string>"
  },
  "currency": "<string>",
  "balance_alert_status": [
    {
      "threshold_value": 123,
      "in_alert": true
    }
  ]
}