{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x27fbf6c041d730780f71d5455fae7f60ea9aec38a0b9c71a3d748a792bf4f509",
    "signature": "0x1f35e006680bb3bf27adf5367fde78277a16e4732214ac8fb6c5c487f064628949d2c39cc901bf7f2ca84ee29113a04caa550e94f571fbb7ea4301922fd7749f1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}