{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582447217",
    "entityType": "User",
    "nonce": "0x802fe5bdc0617c8e00e8b3c924015c1da1f1d59f9e6e792fa522e72d5c802ccc",
    "signature": "0x1b0fd4b54b2d9d878f2b5ff8bfa2c182487c12ed15a63c7c8871ecb009508615429f082e6a4ee734df57bee7168c1c71f8b1ad3c67ad76f997f829dae56f22e41b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}