{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1053953",
    "entityType": "User",
    "nonce": "0x3d2fef2bcbfaf8fb7149bffe023811165df55b523468593698201623bfa51afd",
    "signature": "0x8ac0cae53f9fa8b3def60aae32f6c1c3b0fe02d23e89a0a30b5f814c48b00dea1b1908e3153591285c3f693794a48879f0ceffb94a36048ac24c5c7e7b51a1011b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}