{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x7b5b28bcbbaa8bcc149879c9e6999adcf413adb3a0f64a6dfe17a545dd9de7e7",
    "signature": "0xaf39673e774a448db05f504511c0fcbefeb39aa82b06f405e0c3d21e0d04910f3fd93121c3cd007ac67a7672fa23dea4ae5460f6c8e4f6dd785568d20824ead91b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}