{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x217b6374f2da80aed248b3f394e2a90f0c3fc8663e8e3f425a6433fce3b39612",
    "signature": "0xce523aea0c23e2c839e04e9bcfd7601a53abc3cb092d03af79895b5f1f45e94667cab745d3dc1d01dd6ab1d1f6d02d4b4c68042a1985503aa37f0dae93d2cef51b",
    "signer": "0x7B452F4626D784d9d89CEE11B9708A2a490C013a",
    "userId": "785572647"
  }
}