{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0x2a046a667e42777cb2b5b38150a0e381340a17f2f94a02748d96aaba5d4d56d4",
    "signature": "0x5d07456a3074411c8461254912b748c6daac668429a8f730927e7c2304ffe12d63cbc77480908e8ca41a9630de90c8e35adc5f2a0ae597235d9cbc01ebe08c461b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}