{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x12ece162b29b168c1d6027a01c4f1927860d21b4598f0115b21d078a80fe13da",
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    "signer": "0x930d6F9Ac58B5a72c3c68840A9dE44Ecc8B58a83",
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  }
}