{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458118601",
    "entityType": "User",
    "nonce": "0x4a9f2b5b245eed87469aff240fcd3d0f21068a90f16954accdece9898d8bb341",
    "signature": "0x2b0b76cea034bf2e41bb3506210d548744dca4b752193446f5c806a24cdc78452af443dc5486d44658728694dcf8be56a50e28adb99aa55dc171c466681bd1511c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}