{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd52889e81eea92adffd9b9efbc354840ea02b4bc1be550a55c33fbc1ba68c5ba",
    "signature": "0x886087c8f07844ea89595edbb12781dbd33474a70afd63af026e123305bf7d2d6c6226f18959ebe21e8b977afb86dc5a009141b7f1cde9e379b91edab8ebf6711c",
    "signer": "0xd32ED92B43E1eA9e50849098337fa8b47ad0c42a",
    "userId": "893478377"
  }
}