{
  "manageEntity": {
    "action": "Save",
    "entityId": "55466",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x467c34c3d6e2021163670df1d32f378af620cc0c667dcfaa85226de136c55811",
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    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
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}