{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "756424",
    "entityType": "User",
    "nonce": "0x44958eebef48fb438306f73a1cf777aead8209ba1ab293d09badffadf28d5cd5",
    "signature": "0x4d1f00099dc847491ed4cca6b4ea52218b137b317095727907b8ab90ff0e98a66b7744fee62e3cfaf705a461ea67dcc5f106328d5714543627b839980c8ccc611c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}