{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb9d2df3719c94d5aa3c90e3b408e2fbc13c63679f6ca25c26d65203cf055ccc6",
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    "signer": "0xAaabA8f3Cad2ffc693465bE45BEf0a1e17993471",
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}