{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x41cf222be6ec55ebcae8a2ec706cdf018ff389eee124b9eba442e2fa6a75c373",
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    "signer": "0x3Fa647464da7FB0f2B0b6f7f2b539Bf24AdAb791",
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}