{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x38f8028d1e697fa8d5f5dce7c584c92711f58a26f68fea207ad306f1e6ad2d99",
    "signature": "0xe1c8420d684dcda5a57c72fc0dc7cef4ea63c58beb3c57239f1c28cbce14ce251447d518137599de6068e98de921be807cde38e454c4fa294b2563f6a79ed22f1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}