{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "541645",
    "entityType": "User",
    "nonce": "0x8f23b4908889c90bb7b08af921a32bc369537ecdb85bb3bafc717e41cc3afbb9",
    "signature": "0x189aa4e58e959102ada18abb928dfc8c541698481344b11c4f5d5f84249ae3d50272a211f41fd584c73acee6d1975f9fc318f533caf9a4f7f64a2c2ca612ded51b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}