{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398277387",
    "entityType": "User",
    "nonce": "0x17476d1c070c2abe7eb4822a2318bbccff0fc36c4a74f9d1e1e729629dc40cce",
    "signature": "0x14d051f570ca66ac3c85ec6efc067b7e4e24b3eff0f27022d85340242516cffd3b9c4335a9753b5134d1704c0a9ed943f57d6ac9f6e7410f4a03f9819c9d84111c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}