{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x741865ef6beaffb23503a96e06536975b50fe653eac7b552e4786f86101db2b7",
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    "signer": "0x1A04334e2cEc7cD99a39f9f1a9CA3faa6e37ecd4",
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}