{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa51f1e6c743e90cfc6496d2d76eaf8f478bf40a922651f3b54b0fdb545d98bcd",
    "signature": "0xada41a724172231db996d981f3a301c841e8d08004833ca7cb762f79db7b86a56e16427988d7893b173bbfca602f6c29867d3fbeb8603d7eacf5b58874925feb1c",
    "signer": "0x08411E4c6D29293B936B93E5486b2675FA3a4c98",
    "userId": "237624336"
  }
}