{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x8e8946db3336abf7e6daf03c1db91adec799d49932b6b7a8db7f13dc85672544",
    "signature": "0x3c70c657172cca6595548bfa70f1b70d7997273d99abca6a289be5900d8fc6b537b836bb22b64a90cbb270fa565fc7962b71fb189738f479bb207823b6d8b8da1b",
    "signer": "0x6fCF27923aE49B784D4ddADC3b0295b49e8403f3",
    "userId": "503591447"
  }
}