{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x3e513417d4eb0911ab7efcb51c82d9bb2561718846f3736c5a9514fb0709d0d2",
    "signature": "0x63db5587ece40ebf8702db8e045d92983e9219d2d0ebe2608231a0c986a375e7219eccd8922eb7283dff99a1b424c0975a608f24fb1d92fcfc9246d698e409ac1c",
    "signer": "0xF468F3BA4645DBF901c04Eb471B2eDe9A63eC5e7",
    "userId": "346369698"
  }
}