{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x0107098b546edc771bfd3cbf5f1dba740bb49c7ef094b0a1979ff21612f9ac73",
    "signature": "0x178329713ef570e5b2f44a886de5dccf77165e01bf3f45cad4b6d3833c640eda71323984bd45a092d8de6f1be0ecdce96235069395e8f93e9ba7cb5270b79ff91b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}