{
  "manageEntity": {
    "action": "Update",
    "entityId": "183436734",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraimjswjwwvbj5u7wronlxzqch4ykeamqoiypgrionubi5eoag7f6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1849280626}]}}}",
    "nonce": "0xe1f69bd8a42df23897e175c571f7f040447d6292d2c795ab83f945290b16be21",
    "signature": "0x15a6c3f25da5603edeb3ee1f85fbdc817dc9bdf222dd463f88eef64793948c40293d75ef6378cc305c6e0ae2a6b02f85b61943ece5d3d91320bbf439e9544c681c",
    "signer": "0x1AdCc1672CFC554e552a0a7b9D38462A45ACbf56",
    "userId": "183436734"
  }
}