{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd8be3e7b9cef91d535e8a0d557e2c5f3474f69cb763c9486f7aeaa9989123817",
    "signature": "0xf46b2434e6516d4e7beb4547019370aa83f779b7f7d89193c5155d276e6b61a27baf2312ba324963df9ec6e5ec6109e3b143c1b7793a96453c52a87f42bcf2af1c",
    "signer": "0x3614F28f97f9EDB02e16a202683CDd236CC9b470",
    "userId": "196581428"
  }
}