{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609866995",
    "entityType": "User",
    "nonce": "0x64942b3caa77055b2a12feebabf041d6160c5ab7e9bf7a45dec5d2744df9cbf6",
    "signature": "0x80670fb2c6e2872223d2ea64acef175f709be173c416239f4a3977130fe0254c502b59f56f8c49ed127211a34224f1159bc23734eba7509f90b803b7dbcf5bc81c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}