{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x44f24a45896d5333a5bac1e16ecb361119a0e78d8d514d8b8e5e7f41f0cbc442",
    "signature": "0xe170636ec19c7a6dfe069de72a1219e87da11efa5c32a9b3bd6a32765e4c58c40a50c24f9838cdfcb146b5b0ed5472067a92d460d9adceb3ac9c4b8e964dd6b61c",
    "signer": "0x556D15a5c7676f637104Fb4F811c98D46bad6AAF",
    "userId": "98088512"
  }
}