{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc2bef38cfec1ebf57e73996edeeea854421f7bdddb91dc26f5e7a4cd7a71bbfa",
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    "signer": "0x4dB479217fdD35c9FD7379F807a810E2755fc604",
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}