{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5cab89b9bc87fa6e358de033785b732ffb82eb7e4f6a85bbe1ce5b939b1c8dc9",
    "signature": "0x190bb5cb71726fda0e021322173cea4c781575d409613c3738bd1a477b2871b63a941cd3264d8374979a14ecf37b0e78e92febb37c0f4174d29fae345b7e83231b",
    "signer": "0xEa7c632Cf9c202D2263dE27e69fDE773bbB4BDB2",
    "userId": "250013065"
  }
}