{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101876",
    "entityType": "User",
    "nonce": "0x3be62593b4568a826189a8b5f67e919e647f84efdf7b830230ac3983d3c8518a",
    "signature": "0xe5096c2f311fc920e1663a680959b9023dbf1a4fdd4bda8888a57074e6cb156075f8b7d6b35251725d9fc9319e2a803345c6a0990919511873fe77d48f6a746f1b",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}