{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675830993",
    "entityType": "User",
    "nonce": "0xd4d1b500e6a3f1d17aaf074369dbb30fba1cfeb744399aeb0a862c0ee4d44ef9",
    "signature": "0x1697fc5eea17e0fe234a67c83e3df5e0f1cd48e6bbb6f690d00b1d4ee83c23c838dd50c39c9f83dcaca8af937a03aa349c025cd264ac083b3ec558bde7a29d461b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}