{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372375",
    "entityType": "User",
    "nonce": "0x77a2ddb032eff219fbf94145e086fa251932784acf4b93123a71fa2e6aaf6749",
    "signature": "0x1486a411363ba07d2713ad4652bb68222e6896d0b0d2e6c22ab0d002a58f4a736c65b9b3c01162845f1fbafea5af7da82d93956a8056e8715be7b186ff3fe51d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}