{
  "manageEntity": {
    "action": "Update",
    "entityId": "724467448",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4861175a605391d1ff543a343c63f7bb18b22e0e1e0255183be005c3381b98cb",
    "signature": "0x3d6d567f7c061dfc58f45fe3a8bdcaecc494bc97e0fa41b7775ef46b07c959a53073fd7bb7ae8948804587e300842d2ef87f6adc48a8908eb3e96f44c09132db1c",
    "signer": "0x1152ec8727A87a59035c477aBE836F5C801764FB",
    "userId": "724467448"
  }
}