{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "471163887",
    "entityType": "User",
    "nonce": "0x0a454919975729062e85c706f2f85d6273861d681721c7e0fa32d976ada98850",
    "signature": "0xc5e62e6cbcd3c769c71511e73a505a20dd2bd52f51e8b4e6ba4bfd68ce2d21b53b4c8ad8d4557811fdbe64d8c15e67717a24d2625364d6a9a918dedc76f8ae7d1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}