{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca70ec8a844fe24cf9f7c45cc0f5c24ef8649dbb788ab0f9468e8c6bc7179912",
    "signature": "0xb33fb333bbea12ea80e1acfc34702c9cdedb69ac7cc58b7fddd21f2ce0ccdc3f6a50d92346df22710686ba4d37886f348a8c08c5337cf891461c819b432691071b",
    "signer": "0x8721B21236dB972C20d1731E876Ce92E16D620ca",
    "userId": "492946257"
  }
}