{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x23b2f6a5f00296805e1849679387fefa2e02a2bde4b0526dce6e3f24b1c454a6",
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    "signer": "0x79dAF1DAc45e59edcB07c04066D2096C5Ae955dB",
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}