{
  "manageEntity": {
    "action": "Update",
    "entityId": "365827295",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x790fbab1ac9355a98cf846da829c56baf709c685b69ed6a4a73815fa48db747c",
    "signature": "0x4e914a0f8fd3c76bbb449807e3b3640808225434b136c764d8d43bf43c0677be42341ac9adbce1eb481c8a325fda7af491140ab88e034c2503e8ff7fa5d2266a1b",
    "signer": "0x8F69fF74321c78adeF63B1eb333425775298D470",
    "userId": "365827295"
  }
}