Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ef20aa57bb9db60da74ac47394857b2572102b3b403a3f8bec1429361d8634f8' 
  AND token = 'A5CzqChHbFLrE2NlYcIO+xf88rggyDs/Ti7fQqXdR8E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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