{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x298187a6bd5a859a5dbc10751424897deb9cae8fa2ef76e0a496ce357f2a6443",
    "signature": "0x098a48007436bb75bbf37d4178d727587b8f70567ea21ad0af79a26976e9a40c0caa30a78b6ff2a973d8031682d26e0455148c7a6948add300ec1bf6cf33afb01b",
    "signer": "0x878ef3492177fEF4758A7047952Cb0D4a01aF0c5",
    "userId": "905988461"
  }
}