{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd4bf9b3e4bdaccd3530cc701cd8586338d46f2568eab72903fb18e9fa4cf0679",
    "signature": "0x46e417cd89e8e58d2fc6686dabb81e5a0d6347f20fb9a2322cfb519f045fc2071ef62412d2ef670452a8b78d0cf39a23f64a8a307b6e7ce85c33bd65744a441e1c",
    "signer": "0xD181Cf269db3a4cbAcb49Eb4339400d39B43c75d",
    "userId": "652732788"
  }
}