{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827420993",
    "entityType": "User",
    "nonce": "0x87b08713fa387be374e3b49b519c7349f512a2f0a4769bb88befb961a42d2bcb",
    "signature": "0x89b6ed18db39ec69a6308f02fd5ea13dc16b8a17e150217a64216e49d8de045452f0866d2897449192df0f8a68be8df0a97eb7c74f6a12aa4a020c014654eb7c1b",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}