{
  "value": true,
  "read": [
    "3EB0A9C6D2F1E4B5A7C8"
  ]
}

{
  "error": {
    "code": "instance_not_found",
    "message": "Instance not found or invalid token"
  }
}

{
  "error": {
    "code": "subscription_required",
    "message": "Trial expired or subscription inactive. Subscribe in the dashboard to keep sending."
  }
}

{
  "error": {
    "code": "instance_not_connected",
    "message": "Instance is not connected"
  }
}

{
  "error": {
    "code": "queue_full",
    "message": "Queue is full (1000 messages waiting)"
  }
}