Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bfc1322823444253f8edd3cfc3645a00d809c40dcceea560a04bda926b334516' 
  AND token = 'hSzCKm545HvJbLL2JUTz9kag8u4WD8z6+RsIG60Zqok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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