{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc70d119b98c5dcd11477f6b9921bb64e7b70637a3d7d7dbe7fce957f2dd00f23",
    "signature": "0x7b33fa39af56a12253162a9b50303dd303ad3783f73ad6fe910cc3ed7c67385c2445bee978310f8002b0c7dfad897e3cc001d742b990ae3bc225b34dd9946c451b",
    "signer": "0x91072eFF36406F9A9a18959Ac5543c2196df4721",
    "userId": "749166370"
  }
}