{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "561",
    "entityType": "User",
    "nonce": "0x4ae187bccc754870a8add17946ee59d741ba8d45ef2868e76498ef53a99d2e1b",
    "signature": "0x64a8ce140af51ff677f82d3b93a1091d508194fea531d738e7e0a77d3cf5fb3f424eeefc746c3b3aeae07b5cf3af9927ee1e14f6b8526321ac2da1b499888aee1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}