{
  "manageEntity": {
    "action": "Create",
    "entityId": "595869844",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"\",\"entity_id\":227661983,\"track_timestamp_s\":15}}",
    "nonce": "0x9d22cc40bd18c579eca6615de4933331d70cb84344a1061cd49bbfbda6732bd0",
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    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
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  }
}