{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "649862410",
    "entityType": "User",
    "nonce": "0x15ebb360f614df9098615bf5ab6c54781c7a15482996ea98507e42a4b8b851ca",
    "signature": "0x43a9544c73202d60b3b486b090b37034f62003279189f7998f115398c3dddd706a8fcf23908706b7eb5f01ce0c3ab809f3b291051f1c4da4fe94df10de049c881c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}