Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'df26ff0158f3889d4e969a6961d761f575f80e3f46bc681640baba5eca812e7c' 
  AND token = 'VmQG1JelDndx5WQOKaGZvf3l6I1V+EPSC5Pk3d0+Hz0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}