{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0xddfe059713853294c3835af3e1444b7ea03d1fb1976503cd60377328234e59a6",
    "signature": "0x7b6a391f25427545c9b93cdbf4f60b3995c33ac584dbe9ddd8f014338fd0ee5c6820ed68e9727bfa3cf4d832ccc002d516fbead1028a8648aad9b02005df68831c",
    "signer": "0xb17bd5Be74Bbbe06Fb52cE5F0E1e373b5638bae5",
    "userId": "392710616"
  }
}