{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x23672fb9e712b23f74e0606dec4d95cf1bfb03d8b1dc5f495f9ac7df9c786e7b",
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    "signer": "0x0A44a42c082f41293eDdE36f5e00db6D10B3dF2e",
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  }
}