{
  "Version": "2012-10-17",
  "Statement": {
    "Effect": "Allow",
    "Action": [
      "cloudwatch:PutMetricData"
    ],
    "Resource": "*",
    "Condition": {
      "StringEquals": {
        "cloudwatch:namespace": [
          "AWS/Usage"
        ]
      }
    }
  }
}