{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe7a78c66cfafe6708d674fe3530aa8506596c2e5840ed9cd2ff83ae7f86462d9",
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    "signer": "0x6a1Eb4ec32E13e7Fb8de38d1aD02e5f2d35CF42d",
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}