{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x8140b23f972f8b30f81b48e5300eaee3a37d7d193fdf36847441d81721dfd011",
    "signature": "0x50a30be623fa72f997bc26a409f837cfde7273168aefeada31329b3bd241e28a77cd020e6586dc6098c7826f9cdee7ae318451c803986b7c06405bd6ada136261b",
    "signer": "0xde20EFD4369a97D5944f788c95F12724a7b095DD",
    "userId": "360439889"
  }
}