curl --request POST \
  --url https://api.pocketflows.com/email_blasts/{id}/start \
  --header 'Authorization: Basic <encoded-value>'

{
  "id": "<string>",
  "name": "<string>",
  "created_at": "<string>",
  "email_template": "<string>",
  "status": "<string>",
  "scheduled_at": "<string>",
  "segment": "<string>",
  "email_address": "<string>",
  "statistics": {
    "emails": {
      "sent": 123,
      "delivered": 123,
      "opened": 123,
      "soft_bounced": 123,
      "hard_bounced": 123,
      "clicked": 123
    },
    "executions": {
      "total": 123,
      "pending": 123,
      "started": 123,
      "finished": 123,
      "errored": 123
    }
  },
  "attributed_revenue": "<string>",
  "enrolled_customers": [
    "<string>"
  ],
  "excluded_customers": [
    "<string>"
  ]
}