{
  "manageEntity": {
    "action": "Create",
    "entityId": "349076185",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"fireee\",\"entity_id\":1819287271,\"track_timestamp_s\":45}}",
    "nonce": "0xd4b16154178971da83a563718a10d2be6b386f28ffa0d67b6f252209cf3b4e61",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}