{
  "manageEntity": {
    "action": "Save",
    "entityId": "2102760050",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8198b74311b7cccade328113362d5b818b770fa56db806ce28d6494333ba99bb",
    "signature": "0x7e65901d1a5209210d0cb02840449017538d686365f8349bbde214a740e79bf461fd5f2d8e7fba7207f752950d52433e75c020a1574f2b2c3fe704bf5ba436c51b",
    "signer": "0x9c0E158fd6a79ba8384938c72F34b5D765d2A9Df",
    "userId": "178678516"
  }
}