{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x555e1a61c5831fb5b63a3219a6d2cb9438b370f5e93abb2ab9b763f6b9445063",
    "signature": "0xa9f1eaa14a01012b9695f84eee93936f15dfadf455946e2ecbf4fb1b08a23313495126b3a896b554e1748224c6110bb0e38f9adb6df820acb28074bcd95d99f51c",
    "signer": "0x328Cbe1a5E28cc4051CF35095df8009Eba16C666",
    "userId": "483266798"
  }
}