{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa8198d14caad6d5bca74fde6b15a5ef7e5cbe18101ec99ab842c64197016d33e",
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    "signer": "0x687Ca5f210a68254CCF5A7F00296C1842f754841",
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}