{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6034c97fdb7f8716cf3449a458c42709589336dd818910d273b7c0eaf65fa3c7",
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    "signer": "0x7870B18271193ffCd07c82d5eEE8CB967B2178FB",
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}