{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0x972ec9ebabd459eda0705a6357a21fbeefef3e18268c4d98f03c8f39bfb71a54",
    "signature": "0x30a3de9dd31b84af1fbdff313283753134615b9b82d8e89b2d4805ba9de3b81f76bf63d7ac5f965892d834f447fac556635a4f97fafb517c1a9bdf5b9f6fd25b1b",
    "signer": "0x32987cB5D8fDeFeb44447584950469BfeC9Cd41f",
    "userId": "63084"
  }
}