{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77268df8d00c4a81e977ea54b2a7ac6bd7f482f186187c286aad90a658fa26fe",
    "signature": "0x56b1675380b8ebb156dcdf34dca807f5a8a4b85ecb6dcf74f756a152a110a6800afefe760a89344a30d43f0c6671291bca71d0de014587c99617f46d0075fcaf1c",
    "signer": "0x2844C82020Ab80Aaa1a405d0eFf19e41694978Ec",
    "userId": "551903387"
  }
}