{
  "manageEntity": {
    "action": "Update",
    "entityId": "260693348",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d3f459ea6471dacab7979f239b1d7b3b4a6b906f5ce8dab4e6a208a01122a70",
    "signature": "0x1e3db09c0121df44aaaa170c3a3eabbdcb030c881912b721b46dade12a5f501c648ab43c01137c0fc763b04413b490282e530178f967cfae341c0d02d0f3a9ad1c",
    "signer": "0x9976815585C2991FDF41607Ac075A4Dc161C0BdE",
    "userId": "260693348"
  }
}