{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4f9ca9973fc2d0705435cb65323f11e7a83788721f14ebac2e283e7e3426e3c4",
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    "signer": "0x5d2d8A87AB5CB4cD8D512501E4A53cE157a9049B",
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  }
}