{
  "manageEntity": {
    "action": "Create",
    "entityId": "578505559",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"I love your track🔥\",\"entity_id\":167008,\"track_timestamp_s\":7}}",
    "nonce": "0xae84099786413962368ec92fdbc8e27c0a4a3d98b45324e0c7f2a9caa862411e",
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    "signer": "0xb9ddEb112c6372f799a4c15a4CC20eFdF56aC1eF",
    "userId": "605067669"
  }
}