{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325380",
    "entityType": "User",
    "nonce": "0x4945b0f10056e227aa60a840a0d2ad598becef00d48f4a47e94f00454cb692ef",
    "signature": "0x1e277582ccee69e4145bc7ab17cf2fc49c7e1882659404a321ce96051dfecb4e4693dd0d40dcce614d19d9bd7b5a1d99df4291f0b8516767aa588fea935b5c191b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}