{
  "manageEntity": {
    "action": "Update",
    "entityId": "361844768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfcf4adad22ea6a32a2f83db3020badead22b1c6f3ffed2bb2d00c32b3b568c3c",
    "signature": "0x7f92a5762f03bb1b4d6fbf38ade8d9161e103b7f12001a3cae35cc35b646a8fc2e58eece4f20705268766ee92526289f9eeb2a30d57fefa538eaa57821def4451b",
    "signer": "0x031a7407ccAe9d79dbeaEa139109F0224F0bd747",
    "userId": "361844768"
  }
}