{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0xa8f2fa1001e06284e9e677f69845c041cdfd35b7f7a5b8ad77d7ec725ef9c984",
    "signature": "0x63c4f4ef796635774e942a3c38d0a4c38211fc89d08e5331a41a3f8de55d1db07729d6ca67eb11cbbbd757c0196d91608c977d6ef4a56403a74b86882fcbee351b",
    "signer": "0x648641b8343AC9819Ae81C3f57D5364689163C83",
    "userId": "64916143"
  }
}