{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396467",
    "entityType": "User",
    "nonce": "0x41f1101af28fedba6dc70f1bac865c9a1acad883274eee5df32c56b27f330a09",
    "signature": "0x575a40190c97688eb091abc3c45c80ffa51dc633c72548a6db2e92c34c3ef50a7a8efd2f906f0ecff87f72f9812e7389a87e59f7f4c76168143ee3febe0c9e0c1b",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}