{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "817564020",
    "entityType": "User",
    "nonce": "0x9d5a2a1026b390668c2bd06b02fc5d0a94677fa8df2fa180d84725be862d7d49",
    "signature": "0x24f03099572081be6152135ca9f973a267336de1512815be813c4c06edc7a8792573bb3e6222ea68b358babcb9a516ab37dc66dc884d96a85ea1bf835b4d23311b",
    "signer": "0xe309B4910De68C7B1DcF8A12b8F7603E6cF8576A",
    "userId": "354814803"
  }
}