curl --request POST \
  --url 'https://api.flashcat.cloud/status-page/migrate-email-subscribers?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "api_key": "sk-stsp-xxxxxxxxxxxxxxxxxxxx",
  "source_page_id": "abcdefghij",
  "target_page_id": 5750613685214
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "job_id": "01KP0311872NVYFRRQ82FW0002"
  }
}