{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb0a6bb0e1a237d37dbb66d91f17e6f3f1d6252133b98e293afa7ef93a1a84f8e",
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    "signer": "0x15bd1aCC8c18c6F3BdC38130eF5A5A5c55FF3D4b",
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}