{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843421708",
    "entityType": "User",
    "nonce": "0xfb6f11b2478162ec7c51c86f983f4ebdc54ca4011cc86d83c1361348d5348c56",
    "signature": "0x14648f4aaba16a1874fc5611b1727e32d95faa5aa8999be88291fb8218f75b433fb934342f7ac134527c2344944113032ea024f86bf71249a7a1e51d71771ba41b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}