{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885116",
    "entityType": "User",
    "nonce": "0x87b5ff4405fd63815cde13bf23a57cf63eecddfed79b6747bf22757f0050bc36",
    "signature": "0x78c9d28f752ff44523a48294a194d713d129888e2f08a67cbfe2499fed312527216e622be0269b6865bcb917eca6e08c20060cb5c5c56c6b85592149c332ed521b",
    "signer": "0x41E0D919F5E5E950b3646cc2545AB0d2c70af998",
    "userId": "962472503"
  }
}