{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948584098",
    "entityType": "User",
    "nonce": "0xe839b7e8491a05d377e95f89475666c47d1be142ad33de362b283bd23a53ea3a",
    "signature": "0x88bb57352fae510666175aaacc6adde5e8a4bb0b904af3e27a9ef1e1d889e084310564e5b15f8e62454fbdc11ed0ff729fe59d5dca7c39bd7614da63b403805d1b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}