{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xbbd688348702c5a58cb1fb3457036aaf95034a6b5e237c7edf5433e9ffa62ac2",
    "signature": "0xc2db3d0f688d46000b74df9026d859f236299762b9b75244ed06e5ec377ab5fd3cd0f599e24893e4d26384673174214c79321d7c10a4730b650fdc98f0110df71b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}