{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x52431ccc81e3fda9b9b519e9ab8e7bb68d46296ef726ce31e53f91a7933f1156",
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    "signer": "0x641a7cFCa4f52fA4DFaC2c272908362e7D26250C",
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}