{
  "manageEntity": {
    "action": "Create",
    "entityId": "351537898",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"mmmmm chilll \u003c3\",\"entity_id\":116470314,\"track_timestamp_s\":66}}",
    "nonce": "0xd29a6d63b93d4bda40ed6590553be32469cd015e1adb7fc7ef223a43bb5402ae",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}