{
  "manageEntity": {
    "action": "Update",
    "entityId": "75915611",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d79d3504a212dae0ebf899c6e5fa348f3554cbd584ac6556483e07f2b5e0dee",
    "signature": "0xc19ff9c2db07956b36186f0f2b042845fdc47f31da249dded5d71b048953ca4c72460081e16220f7f6f352a59ed125ac37f181496d52055a3568f187d6a61a4f1c",
    "signer": "0x368e43DE291CD320cF48ECF204107F88a5dC1533",
    "userId": "75915611"
  }
}