{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7166a0de2e237e10e0da5ba42828ccbf143c60c2ab747cbdee1489f117ce854f",
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    "signer": "0x2044d6fdC3EC44a2f1f5Be85ac07F07FeAA98A55",
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}