{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x51dea44d54f3942ba17de4dfd20ef8b04ff296dc30741b7ed888eb5872e82281",
    "signature": "0x34f397cc0850b4626ed0f7c5ce6429e06644503397a3f2ee5dda299b490adf3b4bedde4585f47a75b802e3b7eed1b6636287878564abbfec65d96a83da7541a21c",
    "signer": "0x4B140b61EB41438Cda0Dd10473ad1334309C1b97",
    "userId": "45511108"
  }
}