{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb0efc46aeee7902b375030ac6364ce48a9c5b5972ad24f01c5eaf7ebeacec7e0",
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    "signer": "0x163b9B0b80794FC27cb6C3f9225546C1eFC9aEf7",
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}