{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xb7efbd7fc21ff93fded80e8c5c993d576bb375e7ad02fafd8b6e1c5a9f50dbdf",
    "signature": "0xc0f465c14685687d2d1d86606f8eacd93ab3ea90c1bfdef846add4729c62c85c79167f10c855f6774445e1d480af5053f8cca3c855e2b39fbdbd745874d0bebe1c",
    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
    "userId": "303606320"
  }
}