{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x805fe7dd612421e6e32f7656e2e707eebb7825315bb7271f0bf8149dfc14c215",
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    "signer": "0x7D57e0FDA0E2E7A6A95799E092De830e6DFdc2c1",
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  }
}