{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874130308",
    "entityType": "User",
    "nonce": "0x5829cf518c600203d496bcf9502d2f54681f2a68390f2448823db10173b041a5",
    "signature": "0x086369b4fb3fbaafc417524c77e5a549fc895648011197b690c6afbcc56438c470b5e8d4eac6560bcb67f678050aa1d555fe1fedca0762c866e5c981bf8409751c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}