{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "567",
    "entityType": "User",
    "nonce": "0x6dd016737bbef5c3fbe36d20884ba96afc298b603f5ba8cc3f488b94d6630a0b",
    "signature": "0x6e0847e05147708e37d3c47b163ca099cddece31bfa700fa94745968c10fd939126bc769c196ffa24d900425e981c2fc6f117ce9677016aa52a1eda84c971a8f1b",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}