{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33896318",
    "entityType": "User",
    "nonce": "0x24ea30e61d4275fa0903e4334414d27984432d2e797204cd996c2c42938c6526",
    "signature": "0xdb8cd068e43fc0c0b92235af4942ce7efaa4319e7da3458cb28c505027f8c45864923bcafca8d49a48cf6d4346fc84e5ea50dfaa90482ccb48a66cb46c2ce9951b",
    "signer": "0x521764947d5B74dcd9456090fc491607B1A5F7F5",
    "userId": "78720890"
  }
}