{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237978",
    "entityType": "User",
    "nonce": "0x8e2cc8ed10a837371d39ca1e4afb852bccd3f90b42b2bb3635748d2ba1324a15",
    "signature": "0x0b23fb2bcf12d39437902c9f62edd5ea4278a16a6924c019d9d2ca694ae53d287a60f932b19d7968b3c40561be7b5ec74ab417dc342a218e02527a90d76c93121b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}