{
  "manageEntity": {
    "action": "Update",
    "entityId": "210281347",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x59eb5302f044bc388d417f1d8fecaa4e6c3f88ea5eabfec6b6bbb7278c1bb8e4",
    "signature": "0x5c5effba9466fbc2bb7f847ae17a714c9f5938385298a86cddfcaf0feb815ca136c5fb937f15ec154832501751523cce0266242218479cbf7004e0b37e4799261c",
    "signer": "0x5bc693b06E704c96d4Fdb9E49886F1CbaB1E0C30",
    "userId": "210281347"
  }
}