{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353468",
    "entityType": "User",
    "nonce": "0x5856386a5c5f798aa86183f2717c47ddecd7c966289f44d21e7c0738078c1c82",
    "signature": "0x37fac2a603b366d5d320c0433c05c5e1cdfeec608706541df5a0826bb2c4511320fedf83ed13f76f19403d31cb98f326c80d9bbcab7981c028377340b927f02b1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}