{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5b940818f98792e63bc95fab53bd9ebea92baaced497665d9b0c6b39f1b30ab1",
    "signature": "0x2eed54c5a41c4244944b07facda93331e93276e6599012344c9be346408dbe521f7bbda9f887b2ae864ec37aae927107f19f3287a64a033d2d31121c3a31bd991b",
    "signer": "0x68F38da15A71f4f3D17bB10F0B794d147C64D66b",
    "userId": "247554309"
  }
}