{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51053",
    "entityType": "User",
    "nonce": "0x81d9b53f3c6e55f75eee2525a79b50609d2ab5c26dfb0f42f2b41066186863d7",
    "signature": "0x428817c1957c92665cbd1704605f18151f82f9f4bfb28c9b5f93d7521350da1b22fdc569b10830c67cc4c4ee591f5050febd65904bfc58f050e6940ddd9bd3ef1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}