{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x7469aa3d89030bb68ce9bbceb7c505de1789a5389732f86ea66ca208e3309bb6",
    "signature": "0x8102d7fdb56c97dd308822ec40b0eb025867e0b581c032ea84075ffaafb7b9bc4d088e59fffd7ede1c313244a88711dd765f0db7bea5280a866d75c074cd85e11c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}