{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "440868281",
    "entityType": "User",
    "nonce": "0xd5efb573383c920f30fe440ae15880ee991e3b86c102446416d1229f1d9c2e89",
    "signature": "0x925638e33e4d5c6738dfd487c6edbbbd5169f546278c13a2a96f1ba1cedc45e31886c8b9f70959202a929bbd90a0dd2a1d20838bdae098d25f8dd7d70eaec4bd1b",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}