{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa6c2db8155eebb71e955d8b7a02e7c2bdd02a020212bfc33b95d82017df4e672",
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    "signer": "0x8e0837a7aB80FDE4193d7eB5eA1c2f81E37b7bF4",
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}