{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0xd2b7fc316c072785a453c2cd41a5c84265a41f81a99e57548381dfc29a9c3510",
    "signature": "0xc7ca17c091650811914d337c2ad554ad1865b862a8b0fcc0ce50544edecac29e74571fc21b3de4a5eef305eb1e8bb2f5b9e44f7480feba55c8ea642b569ccd3a1b",
    "signer": "0x75a075dd45bE38AA2c27754D97d5d84dD624FeA5",
    "userId": "451351"
  }
}