{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201894",
    "entityType": "User",
    "nonce": "0xfc88c19cfc59ef3cfa0f06e3fee95b29e67e90f7b8ca76c1ac2c9e82ec415ba1",
    "signature": "0xc484ffdc5ae3d5c6d748a2d19c23554b421f86e8c978f539a3306cb6c1dd592441ef499d9dbf212c1ed43e82f9426614895fe5206def010cfe7eaea70bbad67d1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}