{
  "manageEntity": {
    "action": "Create",
    "entityId": "1991217544",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"I love your track🔥\",\"entity_id\":165345,\"track_timestamp_s\":65}}",
    "nonce": "0x1911681883966dff6bc1b9002ab1508798be6650b7b1e45806943fa246d14537",
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    "signer": "0xb9ddEb112c6372f799a4c15a4CC20eFdF56aC1eF",
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}