{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0xb82b3d88b375dfb0ebfc9acb1042408fa419ed894374cd7f38093ca9db0b7e47",
    "signature": "0x4f389b438c41bbc4327a221b4091586c324df4ea57261d1e85cd1967b26e49643c0ff17c9549f5aa07c46d4d279fdfd1df8556cc3e3c44df64698c3bd52230d01b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}