{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "529409199",
    "entityType": "User",
    "nonce": "0x5637243f7a46ceab7d0b30f1609a71f27e0adc7450e6aeba78c4a6e4d3db6643",
    "signature": "0xf592b31b435980903f192de19bee119b8cbfdab8b7600f8dc8d4ef7995dd9eb0697e0a5004a7d0b31d97565d270f040080262244bd5796bf90b48e93125726251c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}