{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x99cacf735b9343e2a231cf28590cdf403de17ab1cd6c31447e89e41ca44ea83c",
    "signature": "0x479197c7e7041f6785e1adb27d333f77492521ae2c2b49c0a616314b1a82e7031ddf080e78e76f4c478b7f5b364af7bf3217a600ee2aa20cba037b1f5ed42a4e1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}