{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "638852655",
    "entityType": "User",
    "nonce": "0x44efb49eb6b7472830572d16362f4c72b17717989a7856c162f31d1ac5343ad5",
    "signature": "0x657358fabaca62e471a73a9e5077cf49a9981aa865504e45dd87114ffecc17bd09ff8239076437a4c080fc086642f5bc1280f08157b8168b43c75cb9ee88e01d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}