{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x417ef93244e2c6fb4245b77955ab9efb0c5a94ed8293ae9fa083bccb26296305",
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    "signer": "0x89e50e652f2C1608136D6958BBdF4813DebfB33b",
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}