{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018271",
    "entityType": "User",
    "nonce": "0x9789b72ceb3e3e6e3519f66cc82631b3c884e6e2072b11011565347c4605bb98",
    "signature": "0xa495984db272a3f9833fe651f527c470459fde8884d4641ac4f0fba8086312463e3ed5c198bd5bc543e910752e6b1af5bf23edc82152f9f6c0f8cfebfc7f360b1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}