{
  "manageEntity": {
    "action": "Update",
    "entityId": "303562986",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1456d05605b7a22de8deb8834d9220841c44676d80dacd5707e93adfcdac3569",
    "signature": "0x358c3e298fe1d3873ebf00a36e130fd93cccd197035948e28c7b70aa5fedd9e370e2be6cb49a1df37ed311387c2e9b0060341a0845cfe590da47ac78f0ff9bee1b",
    "signer": "0x6C801E827B7D7F16C22caBA0f9cD4D2142aE0D49",
    "userId": "303562986"
  }
}