{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe08378145d4720a5dca112b9061c714dcac8cd4088c4cde31e346e294e3a9e94",
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    "signer": "0x8aC82278ECCcB07F5CD48853c1759c104aD8D7f7",
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}