{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328810",
    "entityType": "User",
    "nonce": "0x024af3c7f3a786f171a4f62888c162107543e6a63f8e0a11e39a26cb2532ef56",
    "signature": "0xd77d8c8cd53bec153df458b4092abaf39ae3f05f9074e8e10ed2198d45a59003681546917c18aef4a4fb02f0f5d9d42989ca3803dbf3dc441f8df490cd8e7c0c1c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}