{
  "manageEntity": {
    "action": "Update",
    "entityId": "458608304",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x98f9a5c669bbeae5ffd07d9d08e1726d9e29208a100cce08c970f9f6db41839e",
    "signature": "0x9fe1d8077fd164dd5a79946d2f8b4056fc94b34bb87d45af90a713ce04edc04a07900b93a2ed2c7419ee935df476a85062f5ab0e50bba0570e3231bb717d5ad71c",
    "signer": "0x4ebEA1a76c7C40B81c2328CF4ff5D59919B4A040",
    "userId": "458608304"
  }
}