Add PMax Audience Signal

curl --request POST \
  --url https://api.adspirer.ai/api/v1/tools/add_pmax_audience_signal/execute \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "arguments": {
    "audience_config": {
      "affinity_audience_ids": [
        10003100
      ],
      "custom_audience_ids": [
        "customers/1234567890/customAudiences/555"
      ],
      "in_market_audience_ids": [
        90013100
      ],
      "user_list_ids": [
        "customers/1234567890/userLists/999"
      ]
    },
    "campaign_id": "<campaign_id>",
    "customer_id": "string"
  }
}
'

{
  "data": {
    "quota": {
      "limit": 150,
      "period_end": "2026-05-01",
      "tier": "plus",
      "used": 42
    },
    "text": "(tool-specific textual output for add_pmax_audience_signal)"
  },
  "success": true,
  "tool": "add_pmax_audience_signal"
}