{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1598320",
    "entityType": "User",
    "nonce": "0x813c7fc637e21dc283ed1fd05e0fa9373107d49068820c8d591417d5179c825b",
    "signature": "0x15089a6f23aff9df81889abb8acece876f2e8c3365056eb01003bbbfcff3931c493fcac39ad0e1e7133bae2182e03181a57d50c6319595f548c2c90a3ed041831b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}