{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "259622049",
    "entityType": "User",
    "nonce": "0x87363eda2285e3dfc1f4e7522a6a86abf5978d81598eea6640996d132cb3794e",
    "signature": "0xe4293b5a7efa148e874b55cff27a4e325fae798451dbee4efefa0bb358d7135f2d5708a57395188696505b66208d7aa76c3a690973582d06b975587278ea51441c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}