Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd3396b97227922c33e605493038a5b2cf1c78aa17001a5a385bb3047d322e7dd' 
  AND token = 'qGVRpJ6/g7Svv2MOpS9XT/ISo1TDgQhwdZHfrh1tba0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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