{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57280",
    "entityType": "User",
    "nonce": "0x00f12b3d9b457f2402346c41362ee0a5f4f2ab3c20d0268b026a1ce70bc8ba9c",
    "signature": "0xd0b668e8e1e3c116ffb30bc4f5530553ccf47414575cc9c0ecfb3a99ad6cbb2d11e70cd15f963c9b8d9d9be156357d1f9f325e444019c581f87159c4a860aaf71c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}