Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e7146606a57caff71592375a7fb0c124c6effe27ea5fa575a8684740b3123ae8' 
  AND token = 'fiiEyU7a+Jrfr300WZ6d6EiGh02R41Q3YFMTIs3VFyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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