{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0xcbe87f5754c673e81ccfc0080c09f027cdd27a0973cb838279eba2fbb8cca591",
    "signature": "0x49a2638939ef058cf82816fe6886f73b7835cc9dd6f59838a4299c85c52e593776a7c340e419c867a036315ced7b2b8628a334014e8f7baa2b6ca69e2bc4e6531b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}