{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x162cda25bdaa7afeaa5d27c2d77a498b1734304e7df572579fb3571698b30f5b",
    "signature": "0x24c50fc1dfb173c513a41c26442b9b67bb5dba64366c099c0323b1e4fd381d9c189e802c305c5b2f357d320e4af296cc8a69ee3db8deef31f99596998b1baadb1b",
    "signer": "0x011D26Fa668d3CA0dA91799477D08C97f94E953c",
    "userId": "775942113"
  }
}