{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x328483e2d0cf842cec8221cae613e0248e90afbd1ee66bfc832b7337dca24c38",
    "signature": "0xdb48d8d9a11619db7b7a9e78d46d366df2c79b7ecb15ba29129e961c2563d297261dad9eaf43c79b441b7f32c73eea8e251defa59a337aa0b5c2cf1d10095f391c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}