{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x44ac8d5d21eecfecf41a51c83dbb0bd58b53942073b351f92bb32df60450d73f",
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    "signer": "0x2cfBA45e5063d6aCD9f26Cf21490FA2e7e45fb54",
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  }
}