{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x75da2611eac7c52746b5025ec2ae9e7a005bf2eeb2b02c95a81982234cd3dc9c",
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    "signer": "0x1f925fF626328Bd4266D3a6B32aA9bFD7d50435e",
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}