Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e14d20167c7afffd62e97f664d01498adf65d8f526ac5f412fb22ae48c05201' 
  AND token = '/toFSkMsGX3ULKEeqDWbu8Tt29fZgB1j578iqzzYtyg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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