{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344766",
    "entityType": "User",
    "nonce": "0xc4abbc26c0325375d2cfd98c99169a69114a6df64a54bdb0a1b64c7a38372502",
    "signature": "0x2eb27e4a83a19e426a1ed8f1c8383221b4126d417d0a50c6c12d021f92254ceb1aa5a7ce1cc7482041f4a0b00780746d2ccc02c36913af5c9ffe40b0bf82805f1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}