{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa1ccab18ee2bcc443a4456eb06bae754c7fe98a8f2a14df220de02aacf7a57fc",
    "signature": "0xe6cf218e6a6f5361f8bd2b9d8d902e8cfc5ffc41ebcaf77e866b225c136a3aab24a62dda93c00928339c935ec258f330c0d9b022e10b18b2cb7af4c44c6bc7bf1b",
    "signer": "0x4086Dda2D91F77cd46De0859a4de37F888508faA",
    "userId": "568518925"
  }
}