Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb83b094e402ff9e7b4be445ad225275e5d70f30db989d6ca268c37b089b190a' 
  AND token = 'UJuKAO8sz/huq8nT2Okyy9HVoLTNUOJriheCtDQt62E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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