{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd34d64f4cb89f176f06fac58fd38f2905e0a4f5b734e467f23158c85fac986e2",
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    "signer": "0x13beEFd81c5fb2b0f94D5834E3811b3DB84B189e",
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}