{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbf4a078436e1531f2ecd666e35d31f6d387ca28f2df539dd165ed1f24bfc1f55",
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    "signer": "0xFd89388dFc049F47EfEdECbAc41DB097375FD1B6",
    "userId": "833685527"
  }
}