{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x39032472519e51a76592676b8ab24d2ac6ce6ca6740da4409e9c9cb9b8fad0bd",
    "signature": "0x6b34c3c1b46fc84cba036e4336f45785919023f73a24e2b087caf5cb55e879fe55f23a72c2a1c1040d9ee8fad5e77e1b60334da97e6d497af4ae7d9fa25543581b",
    "signer": "0x65C55c0eFe455e7F6996AB7341a1fb6c9050a546",
    "userId": "915173299"
  }
}