{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394958",
    "entityType": "User",
    "nonce": "0xb124b41e36be6b317cc3e86f60b005ce438615c31ae81bc6870c14c2bd2c4b2f",
    "signature": "0x82c69747fa193fea5bdc75608a73720aa1bdb7e162381dc3ddd7d9433128f6fd32055a593d12959f2ff2be839cca6a710c218c4fd14b301292c3fb2371728e911b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}