{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0652527f76cf222d2d4c9c999442d6fd9e00e1d281b48b24a2687c966753ce66",
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    "signer": "0x389B6b25D8bDEee42D514b8eF8Ab6270a0A6fd1e",
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}