{
  "manageEntity": {
    "action": "Update",
    "entityId": "468949245",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd6110600afeaf02eb45578e1918d5bec35b892be54ac903d310743cbf9a5a621",
    "signature": "0x739b4bb02d0eea69dcfb6879383c7589dfb9a00e77417e8acb8ceaf6c96ea78361bf9b9a8747130fbc510db9f97b10f68133dabdff3e36baf0bc2aa0bb1dbf271b",
    "signer": "0xbEf4D90F227E3dfCB9bD5f3f82a7A26B1D05b6f0",
    "userId": "468949245"
  }
}