{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0x804dde9878aea661acf9bc40916b004785e920d79cc54900238313b1e87a6f39",
    "signature": "0x0b6ebd757da5701438c5ffe5caf61de2085ba3a2eb97dca5b6d413f1b2275adc655d6de17bf1d8cb1b6aef7317cc4ff42f20122375c937711b236762ee87dbf91c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}