{
  "manageEntity": {
    "action": "Update",
    "entityId": "385708679",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x01a42567fd403165b9798a2e582e3f50f0556d865c040870b192fcce455252b3",
    "signature": "0xad4e5133a95e95b1f5a086edb2c395ffb3ba68432d596b390cdffe540651ed934cc1cd39f72e66cd53aa36fc5ab21486ea7aa37054336abfc31325095e5235601c",
    "signer": "0xAdF56fa0D58072436769dF113a4F94F246c6c756",
    "userId": "385708679"
  }
}