{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60418",
    "entityType": "User",
    "nonce": "0xf9b58444c0c6de791dcadb213baa86920de41bfddeb75aba84fd36c610c09a7d",
    "signature": "0x337f19f66216fe4b03d3be6894293a113ccd391fba419d59c31e7c2cee082de93e98933ff17d02ad0fd59763d39cbbf7167ce9ad432430e47b48ac4ddec4c8c41c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}