{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "575927",
    "entityType": "User",
    "nonce": "0x15414eb0bb4ec79e925351df61f6dd47f43aa72b7a1d271e9e2b83a94787a892",
    "signature": "0xebbbb0a897299900a96c3f400811ab9c7de84b01f27cb711a64caf28c372cba1317f28678189f3ed188f647b65241177fdc88b7fefead7b4d35395b041305cbe1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}