{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x31724994e6b3c2f9071e34b5507e15b763a66ccb048aacf87ea04390d0beeb8a",
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    "signer": "0x24C88C2fc02E1a583514D82b22060c2FE8e917ef",
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}