curl --request POST \
  --url http://localhost:5300/api/v1/platform/bots/{bot_uuid}/send_message \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "target_type": "person",
  "target_id": "<string>",
  "message_chain": [
    {
      "type": "Plain",
      "text": "Hello, World!"
    }
  ]
}
'

{
  "code": 0,
  "data": {
    "sent": true
  }
}