{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a2d7bd35683a37a93cd073d2e68233c08229794ee57330aacfe26745a957767",
    "signature": "0xeb4aec02dd69499cb54fd48ea4734a5ea2f73af5e6512086e1a807ed41cd21d428abd1d6a2d6a646aef94d81087949e036ad3146881f007c77610988521923971c",
    "signer": "0x40ec9214c8F365EE41723f734f4B3Bc32447924a",
    "userId": "579798916"
  }
}