{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2528",
    "entityType": "User",
    "nonce": "0xb84ca398c557e82c0135de3b383d66aa4c61f3207a5c6edd6f530051c8bbffda",
    "signature": "0xdaeb1dd6969131cc9daaab7cf9df5bbdd64d24e38e5e37e39216b0ede7f4370650a7ab62a8a21719a0af3f93dcef8e58ca549c5995b11f260c9a974f79d51f541c",
    "signer": "0xdCAf5149A8084F2C1c72dE882740656EfA9715b4",
    "userId": "994758391"
  }
}