{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916564613",
    "entityType": "User",
    "nonce": "0xbff5bfacd52a94662a8ffdd816314ec7ed46885f381d998cb49a6fbf1bf0abff",
    "signature": "0x33c6d906818b98b179c297224c770f3b147c0343afbce36b8f218b38b556b4997fdaa572b98e233ba2d0d8bec105fa64f50eeaee5e4926fbd43f140b054349f21c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}