{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "688960593",
    "entityType": "User",
    "nonce": "0x526e7a57029e30a339eec24dfe11bb7e978eba30832185f4ac936acb47294f84",
    "signature": "0x0c6f6f31c845cc73faf8cb565fbf5caf3b8ee1bdad754b947bcf4f85fda3233b0213c325b582754a351586232ff54b41f8dd682362a6b77a36f18a2c4dfca88c1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}