{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "535614224",
    "entityType": "User",
    "nonce": "0xdf1103c3204f50f8b0e2bc5a6afa0102bb38651feff157b92b97718da874e6f9",
    "signature": "0x8baac8b3c69f4729c0fa90677fd2ee533947e5b356ddbf429c16f0da3c9023d3706c1e10127d2f732a6eea3c4324f96d6d7ba6651108f81e39e65784f7e374561b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}