{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x34c70ccdd7ebe7adb345bc19fa850deeae50ed8ea6f9099637fa2e8d19ffb99b",
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    "signer": "0xa16c1d736B7255f828e47b362863984Ef2c18fB6",
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}