{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x063ec759589633aa0b33a825075594d828625f9cea75e8a03e48067134aa0c4a",
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    "signer": "0xA6a5c3bD77f7F79A403d0302C0628c4d0a306Ad9",
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}