{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0ce87170c3cad501c2096789d6963318f08fd4dedb7f6a7f09d3d5dbd01191d1",
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    "signer": "0x5718D45728a6AB3eBAB075D945D2Dc5e674FA15e",
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}