{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x37aefac29fea1f538e4a06eb2ca7a1ef23c7428ddc781f90f34941be43bfe170",
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    "signer": "0x27686c69c3E5E4BE1014e8b5880ffD7BA8713dDa",
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  }
}