curl --request POST \
  --url {scheme}://{gatewayBaseURL}/{tenantName}/v1/agents/sessions/{sessionId}/turns/{turnId}/subscribe \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "after_sequence_number": 1
}
'

{
  "type": "model.message",
  "id": "<string>",
  "thread_id": "<string>",
  "created_at": "<string>",
  "content": "<string>",
  "name": "<string>",
  "refusal": "<string>",
  "reasoning_content": "<string>",
  "tool_calls": [
    {
      "id": "<string>",
      "type": "function",
      "function": {
        "name": "<string>",
        "arguments": "<string>"
      },
      "tool_info": {
        "type": "truefoundry-system",
        "name": "<string>"
      },
      "provider_specific_fields": {}
    }
  ],
  "usage": {
    "input_tokens": 1,
    "output_tokens": 1,
    "input_tokens_breakdown": {
      "harness": 1,
      "skills": 1,
      "instructions": 1,
      "tool_definitions": 1,
      "messages": 1
    },
    "cache_read_tokens": 1,
    "cache_write_tokens": 1
  }
}