{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x2c0349fa68267b75dcbc1bfaee7f53ce115f890a3ded4aea0e590eca17edbea7",
    "signature": "0xdbfdb34b4a2c7e52e714a0608ff51bea6412c5d25632a029233e5bc8ef294c722ba97460683e222bed68029c1950afbfb244a401cb44ad305a28908dbcf744d91c",
    "signer": "0x65C55c0eFe455e7F6996AB7341a1fb6c9050a546",
    "userId": "915173299"
  }
}