{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59528",
    "entityType": "User",
    "nonce": "0xbddb56310f3b47cba33c14d665ce88d8b1eaa87a49b4a9e136417364128fc2eb",
    "signature": "0x5cc573147a2813a7e339c2cad86acdff33ff4a2789949b4307c38c87448325051c79c8f6de7300c284bdace5f96a4a995326872799a0e91696e600b3e0e29e031c",
    "signer": "0x60503113D254c437C2ea4c18d70C8a9e20fD871f",
    "userId": "515269421"
  }
}