{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9a63cf740307443afda023967ac3230a86288d42b26c10b378476a03fe922aaa",
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    "signer": "0x1DEB003D7F8D9499f34Aa8a2a66f7b39417cf6CE",
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}