{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x3854a11498635d57a33d85ddd65ecdc04f6ca996315cc6851d40c32bd48ac8fd",
    "signature": "0x0a1dedb47081496b20807bc39b0752050ed0ebf8e662f64bde22a8663527067b5b42727f36140f8caf294fb5f4c280d993c059d8915d6b1476ada0b3bf66e2cd1b",
    "signer": "0xb63A62F1972580dcd51d6A7Ca3a7d5BFE1f4bCEd",
    "userId": "863925144"
  }
}