{
  "manageEntity": {
    "action": "Create",
    "entityId": "579062249",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"ayyyyyyy\",\"entity_id\":30360376,\"track_timestamp_s\":17}}",
    "nonce": "0xbf2cd7e4c968edd50e5774ed6630964011008129a65dcc87916d2353601c96b6",
    "signature": "0x13ea663fd0c38333805f9f41dece1e9c884d43adae436f6e2595f722b124630a7c0408d46cefea7290274a06bba095091a7f39af3eb0fa534b5b06b7bf3ed6a61b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}