{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2b22718183557d0b2a9ac71b644d3324d5fdf1c0cb0977a01dd2c791ac0d0761",
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    "signer": "0x2E483423230095743e043e01F85FAA54b6F80a6d",
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}