{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcc58e19c327fd0e324f829d8ea721fa29ca9cbc0520ae33ad1c6548f14b67171",
    "signature": "0x327a8afbe387dcd88ebd8eee404a74cb264b88899e36e85ddb392593f4dc5e0d604dd4af6bfd772dc42a335df47d9eca54e872c4bdf9ef8db32c84d570f8110f1b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}