{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77945",
    "entityType": "User",
    "nonce": "0x1b745a33fa9f7978063118fa5cc73ad98810a1b2f455858096444ca71173bd75",
    "signature": "0x46e6fe01c1b4d3e0f6be71e19583202bd860722a6e61fc3301ce6b00ee68a30e2533386dfb52168ac8f37975ec838592119fdb40b90a75444cc76514cd7db3b51b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}