Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0aa45e8c61eb6687206a6972a83fa287ce2601d63be55cb75c4b828fe089454e' 
  AND token = 'V7zgec5CssbOsaa+BNVeWwvrFn3Ihv8vwFzSDllX1Uk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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