{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x5471e3bd5cb6e041ab4923f17b5df0ff489abee184da293a512676d7c1a9ebb4",
    "signature": "0xcd7f7899a30f7ea3cc2f83e133e4daaa5189ede34b4f804e9d9bdf1b3eff0a305869409d68b6f1ea7cf55d7795be3f2fe7780dbc0c7a691f280cc3e9b802c66b1b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}