{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe12c6ef44b90a28bcac19485cef4f8c83cde5bfd259b3e81776e08163afa68d9",
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    "signer": "0x53Eb2aBf0EA503C2684758B722D6bB3c9F8cbE8F",
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}