{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185420719",
    "entityType": "User",
    "nonce": "0xcaaebb924d8ecd929b30d1de5e85171c8194babea2f1c1645b96578667ed5c59",
    "signature": "0xd47da124ef8ac880ff3ba7ffd6ffb96dbef74e2765a75b6e1636b0c89659635322109da01fe4ad324d21b9473e9429979a9dbd555e7a4e017f18cbaafc5e2a9e1c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}