{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc1e4a7849e44730696fd8e8596b64a1f53eb77cb2196ac7acdd65bc20f4d51ea",
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    "signer": "0x1Cf150C059eDe8C5449Af969223197b4f56f5F28",
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}