{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1c912ba59134b22af5d0ea3268b33affd2857a7b5bb08a66bf54b1e930c884a7",
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    "signer": "0xA3a92a8dfFa5eF8f14676b981FfB44F6895f2fbf",
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}