Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '954740cff6962cc576a7e7a4c1493f9066dd3ac0480861b43faf388c77934d47' 
  AND token = '4+zb4tqW3TMYqtgC0JWeQjZsRM84vA0/xuos4ODJ2ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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