{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x927aacf9a3ac5a1c2822e5681899f2221e25c66cb330ad7dc037faca63e6c2a4",
    "signature": "0x208f12ce2e437922804df8b85f20bb9d1424fff39a8d78926f9162bb34fdef870e430219f8d6ab6e04f1c0da0219f48b7584708e18af7d3582a89cba4c0920f41c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}