{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc3b4b88251e087bac87aebd2871792e775e5aba3e4ce2537560bd66937fd9be2",
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    "signer": "0x30B23E8B3dFd043fe6A01e4F11D7eBFEdbcd3846",
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  }
}