{
  "manageEntity": {
    "action": "Save",
    "entityId": "158003592",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3c93217dbb379d762c59d1c830015ab1ae751e9595da9ddbfe0cf5c308543512",
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    "signer": "0x550308aa4AcD9bEEC92e3A1c1a3b59B9E2d7f0F5",
    "userId": "232042"
  }
}