{
  "manageEntity": {
    "action": "Update",
    "entityId": "476392188",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e3f0b5e2b23e731367e77a5561d6e90f73b17c49ce9a85015d22a501dbde9f0",
    "signature": "0xd0ad77ab079cdeb0a12a9ee939c9d7eda9850830306afa0144eb08534e0df23029b909c20aea42c3440c649ee91cf2c54cf9690f52f99eaf04e630acf74aef4f1c",
    "signer": "0xf60BB43aa80c4c768ad1aD837cE30Be72F4e5630",
    "userId": "476392188"
  }
}