{
  "manageEntity": {
    "action": "Update",
    "entityId": "389557119",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44596b3ead5d4caa8e085d61af95e34ce8df456475a455ff4bdf882a0564d3ff",
    "signature": "0x70b119290d41b6f30a920a14afcd2bf48c562f63f06ccf7664ca2604c78bbafd1eadebb625b6e52c880bdac326b8c9f29ba4b9b5e4106b63e6035c51d04ca7021b",
    "signer": "0x565C3EA1622dCCfD1923377061F4022FeCE6b427",
    "userId": "389557119"
  }
}