{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf75462941823f770679af3f09e4c4f7d8e9743f4b873b68d491ea6864a04812c",
    "signature": "0x0ebb1960bf67ecabb86ee235b90eb1ce48cadcd3bf7526c7ff5549fa349b16ea0debb011b6ee8c871afd0ac2f16deb44d821e2fec113db6797d24bff01b8bfc01c",
    "signer": "0x59b9078cb9A0a627E6a24F48C1E632Cc7015ACd1",
    "userId": "390698267"
  }
}