{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3bb2abad68341a5792ea38fb6d2366f458401f776b71f1c1e845de8e6cba1a02",
    "signature": "0x2c35702f31b54498452db901388a9008111f5a27566270dfbd09ba3e882c50c44f8a6956bec06bb595eafff0dad3f9cae0707870da15e05e8c14d5a562cb8a661b",
    "signer": "0xDE35dB1Be8BE585ec873636b67E7Cf5aC5005CC0",
    "userId": "65571880"
  }
}