Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fec8b537f5abddf028fe6eb06858f701b5598b76f3236d3dddfa47de010d533b' 
  AND token = 'I2P5HKFqF/MJSngyiHW0yF33XRmnScttyg1zn7aKHns=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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