{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147",
    "entityType": "User",
    "nonce": "0x3b9d73a1ded19ce9c76403ba5a2d639aa850a1e36b458dc370124864f23f8bf0",
    "signature": "0x3e35de244fb6bdebf297016bbcabf32f59f8f18d8c83f0dc07a44a06804d275a3a04edd435728714d9bad28da84e8d71c0529c9501c31e6710d558201449b9b81c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}