{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x79f4cd984b22ef57ee169dcfad5d786c2d7748f36c3c2e11a5a621ee38cf7389",
    "signature": "0x2ccf3d1c1de0810adfe7daf9db11a58ea00b5c2312523ac36e9ab6a0de39050644c60f3e0203fc6402584845b7083f1eb1f32f5b2aeae858678dfff2366ea3031c",
    "signer": "0x4FCD4960Ac52d32C302C092e7a05047152214DAE",
    "userId": "33024805"
  }
}