Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aebdbb1333a568e1cf3298f3a6da9d873fbab43788a3a1af7b4ef25c8568c03a' 
  AND token = 'mObYCFOsKRWr1LaBRU+CwBC/Xem67osWd8Gp32zELXw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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