Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a2c9578d8549b9eda8c30e93b5eab0d3d1874140d858882a5f47f81baf499f4' 
  AND token = '4Zw4wHhtfmZoCc0LVBmPWIlGaUOuT0uKkXKw1GHCWJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}