Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '609d47b060858e7e58c973b7f31021ee6bebd1e73ec2a19b6f2173b9d4b1b6dd' 
  AND token = 'fkYD+MNJrZ1EytQJinzZBPHDA03hgg8wlseGiephauM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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