{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbd2099f503f8d6166c1dd2e6194098207a472fdbfa55f65b498ace42817c68e8",
    "signature": "0xdd1aa5b2bc0bfd2f6a0a0dbd2043e338a53741f491bb8218f3ea5247d847b8a36feef70ba43d1f9c488e21f3bf78beb212446c917a9e1341502f1fc54fc08baa1c",
    "signer": "0x2C935d5c2df964c28980752FE31BC71aeb41797f",
    "userId": "71827200"
  }
}