{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x18fde078496931ab386e860811dc8db10c9dd28a7ca8b5b16a2d1ff73d66f4a4",
    "signature": "0xd3c260d756aa7d313d690233043dc9f9f534f41c5b3b7b7ce8da7777861e570416353e324a353c14a0c2ae46fe61b43dbc0c18418ccffcc813ce670014c58f821c",
    "signer": "0x7b52e6AA15Db4Fc3A84AFF2b12e5B8B128eA8610",
    "userId": "808512351"
  }
}