{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4566",
    "entityType": "User",
    "nonce": "0xd4e3911583cd6212d0e4d04d49674e8d5f9e91c20d86e266e8a216732d3a43e0",
    "signature": "0xdd45804a30173a1c83ee61fb2964ce06b2b5efb290c77d774b31b1586849ad325a9cca3676d925ff0c2f0c521b3a3304f62d1a07d92178ba6c0d240cac1a1e3f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}