{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776076",
    "entityType": "User",
    "nonce": "0xa4c9c8101b355748c7f8e7fcfda3fdb108aeea10d4ed28063d7ec84b3ed036f7",
    "signature": "0xec6233f2aa20373d2e351d2664f9ebb5d2a96d55ba70d0a21b5652af3abdcbeb35195a897b9a8a8fa9f5f2a060bf6820a9a0785644c90149e06de464595e4f9a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}