{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "689751511",
    "entityType": "User",
    "nonce": "0xc985323429c5ac80d2057f350bb59e1c729e53191e1cc2058e75d124ed903833",
    "signature": "0x0a69ab467b7571be23ff70dfbf75e555119f80d54b20128931e55bcea9e8e86a24907ee88291f3598374937a9baffb56f383141cc3259619207a40a565016c6a1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}