{
  "manageEntity": {
    "action": "Update",
    "entityId": "352020365",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe38f9a4540ca7a38ef7634c01139175771887a7f3e908fea05192aece8ed9cbd",
    "signature": "0x34d600f380dadc51b05d371b2fd11f71b9de2c24f395b2fe61ce1fae3bb2ed1863e9e9495256d049521858e7ba465872eb2dfa553bce9d48da02ea3584cfea071c",
    "signer": "0xDB8E6C52ccD85f623587229edfe3f082A690a054",
    "userId": "352020365"
  }
}