{
  "manageEntity": {
    "action": "Update",
    "entityId": "764482457",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4cbb9d07ee119ed71537bd327cc459ec706c4498c389a850b14406a08df8dbd8",
    "signature": "0xf7208b432562fc589d90d9b040844ee0c1d2f2f705b97ffdeb0d0dd2768560c701d3e9e5452ea3cd56ff6c05054578bb2e632e5f3bafd8efa979a0ce98d5565c1c",
    "signer": "0x2a7A0F3C61F765b14f790182920e5B902a4334A3",
    "userId": "764482457"
  }
}