{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x152ffcfe464331785e3bff2985238d84cf055ed93a85ec1a533fee6ae21a5007",
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    "signer": "0xEEE7c45Eb54831dFA9491B43761d51F62B1168A8",
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}