{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xaffe2d1432314f920fdd11c062a4a0de48f763b09093d35e9e82acf924a10ec8",
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    "signer": "0x069B8AfA1738ee411F7138e49d8baA21774732C8",
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}