{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x775935c4d3200cba24d5083cd670892a31346a858ed5541abcee7207d883fedd",
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    "signer": "0xd535D648778eB6B0cEC6BA2784b95C4b22b7BeCa",
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  }
}