{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0xa7f2c809b380b548c9d9b355c56f08f2e9d2b9bacb96768e5f5ae51a5a79b28d",
    "signature": "0x82b4c5e4ade038006732bd479b332c3d576af93d267f116d5d5eb15a8be5b2136d698d31776a458f25e50e9691c6ce2a177a2440aacb32ae89f8fab100807afb1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}