{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2aaf371d199ed7596bd62fa9ed2da0a5f59b2eaf9ef3e0a7b4ef2972b46a276a",
    "signature": "0x2b85b4e3ab367a57710bda1f7357b61d39808dc1759656829a27213a98df5b106ebdf415653b161a53862f123ab016fc5d05edc38181d10510cb006a03ed0fc11c",
    "signer": "0x8E3Ac51Cc25a8320EE8cC8015D2784B17b9f90FF",
    "userId": "238658596"
  }
}