policy.json

{
  "Version": "2008-10-17",
  "Id": "AlarmTopicPolicy",
  "Statement": [
    {
      "Sid": "Allow-Publish-Subscribe-AlarmTopicPolicy",
      "Effect": "Allow",
      "Principal": {
        "AWS": "*"
      },
      "Action": [
        "SNS:Publish",
        "SNS:Subscribe"
      ],
      "Resource": "arn:aws:sns:eu-west-1:240129357028:live-Siren-LiveMonitoringSirenResources-AlarmTopic-FHDA22R099AS",
      "Condition": {
        "ArnLike": {
          "aws:SourceArn": "arn:aws:cloudwatch:eu-west-1:240129357028:alarm:live-*"
        }
      }
    },
    {
      "Sid": "Publish-AlarmTopicPolicy",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::240129357028:root"
      },
      "Action": "SNS:Publish",
      "Resource": "arn:aws:sns:eu-west-1:240129357028:live-Siren-LiveMonitoringSirenResources-AlarmTopic-FHDA22R099AS"
    },
    {
      "Sid": "Subscribe-AlarmTopicPolicy",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::240129357028:root"
      },
      "Action": "SNS:Subscribe",
      "Resource": "arn:aws:sns:eu-west-1:240129357028:live-Siren-LiveMonitoringSirenResources-AlarmTopic-FHDA22R099AS"
    }
  ]
}



{
  "Version": "2008-10-17",
  "Statement": [
    {
      "Sid": "Allow-BBC-production-account-to-subscribe-to-topic",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::240129357028:root"
      },
      "Action": "sns:Subscribe",
      "Resource": "arn:aws:sns:eu-west-1:755368653476:shared-monitoring-topic-MetricAlarmTopic-9QXWSSNKPPEF"
    }
  ]
}