{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312100230",
    "entityType": "User",
    "nonce": "0xc5e0fbe9705d8c85bd1ee7e4d11004f6acb22c51d419a8ce5df2047d249dc6a3",
    "signature": "0x23cfbbc1405e543dcecc4a874a6cbb770a8d1ea619179da7fdb34e2fbc29dedf4f4b2645ccd3ef1a37800d479bcd0b9e8745045912d059a76be614b3ecc456571b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}