{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa035b82c956526501f227c6863e1a7444bd1d561109cb964d45ebf72a162497f",
    "signature": "0xf5b873e865ee58bbc295f8bc568f6a244aa9325d988014d3c9924fd4da02aed2529709b881d6192d99d48dc289be0f2e8b3383c3cbdd5ae71728870a8c7cd11f1c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}