{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163983",
    "entityType": "User",
    "nonce": "0x38445abc995dfb20b270c129c63b918d7a604c839f247052f58a90ca217ac8be",
    "signature": "0xc89a41c165efbe11d4e3198fbb5884ce18f9bc0e520236177f308fb443f0a9cd1e8b4a119f8717463a2423de7ca33ef30c5e858a56e25e3e0a1b35daf86282561b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}