{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "826249018",
    "entityType": "User",
    "nonce": "0xf89b9d69758784ffe1386cde8124bd82d2ce91a8791438959be2ead81452d914",
    "signature": "0xb07b42ae556f08411dfe1f87bfcf0cbbaf3bdb5d70421f76098749ee7ff7df4539fc4ad5af89c5d4a4acc7494c7fe5ba51f9a1774d15ea4009e0d354ee4e5ec31c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}