{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "577440",
    "entityType": "User",
    "nonce": "0xb5ba20172ffdc1da2f5ccd5d341c62f53856e9ddc256cc3120f96a4d1f49510d",
    "signature": "0x33f6d112a503fd1256b670d73e1eea151f72e1d0a98eb82fef8e7727aa28c45971506c60076343c72882bf70cf2f2dd2b4c67a23842e811566147a8d39896f971c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}