Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c0e746c80e0a6b4d488688f20e5df26d10b6653c7c379427d5e988409c88d93b' 
  AND token = 'Q+FLVhyz3wdDeCC3AVeI1bZl01K0mM9T+A4m5WByCr0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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