{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x00d77b98ac8c4e33c0ae620e5bf34b404003acfdaf970e473d6f7af144c657ab",
    "signature": "0xf2aa4b948fa22ab05c2951769489a9ca07cb528f5fade18c8b94cd706d6ab4194741981f4310dbfd1bfe61eb91189d4307e091814cf22a3714142c114ea897241c",
    "signer": "0x39452a9B2dbaB3c004961649B8087D6AC16B5bF2",
    "userId": "192456931"
  }
}