{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21606",
    "entityType": "User",
    "nonce": "0x236c93dae325a5fd4fd87797b75f43b8e378113c8531266445185f2a50f30509",
    "signature": "0xf7a39ec134155bde6eff5bc36a76d766b7eeb2a2f3d9cea3b9fa82c5c76708c35c3d6215d67fbf6c7dba69723ce4d2659c9b6e32d7a9a2a59e97cdb56c9797f81b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}