{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe0b60e58c7e67d132631d49d8d22a2323769b84d08ec54801ec67dfaaba34431",
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    "signer": "0x6F1e254c97186cEEbEBCAF03d8fDF2eEa7Af8f39",
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}