{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0x1f13a16bd69d494b43214884d570c08e6d047ff88250c67b2eea1ad6c2e9c241",
    "signature": "0xa40f2bac8691be641e5dfb0d023c9c8843d638885cc377aaefd887095de4a43909e8be1d3590a82201eaef3ba378c2b9390f00d7df09cf2601fe60d7f4f7cc391b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}