Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebbf96a102be431866142acaae92338851af57475cdc04c50e69f7271aed864e' 
  AND token = 'tP3Z1y+SAbFrYoP0bWV1lPhF9xCRTRmFGzvA3wofup4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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