{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319458",
    "entityType": "User",
    "nonce": "0x9f237e56f799bb2ade447ace8eed5cc7c5520c946c44ebb367b27a25f845f952",
    "signature": "0xdcf1628462dccc08b2cb30ff042bf45ebc303f690b8c6d293b66a2945c60d576328b6a2c01e9d3c1b1d8cda6b154ed4ff5ab94cd80add4928b6c7f8e936a343d1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}