{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909603442",
    "entityType": "User",
    "nonce": "0xc15eefa9b8ef4e6e2d7094cbe26855694f50fc81aa8231ecd81b906c40158654",
    "signature": "0x0529257726b142831324b018c1ba07711a7500dd55d685739a838d5ac0a24d953ea82d92ab6b01c985d6f3fb9edd667a4502d4f5e7d9f7727c9992bdd8fee84c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}