{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaddf2b3b9e53c20d613a818c8df20793521dafb5495dd05e06732615707dfabc",
    "signature": "0x781a71b8c6024e14af3400f87aa5c72339625e36c9013c21a4f232db065e20f441afd6264c2dd5828a4870672ea120a800ce80c83ac6c939e5e503567526b6251c",
    "signer": "0x94e2fEC0fD3bE5B07c4C10491A2258ED96C678f9",
    "userId": "380249258"
  }
}