Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7757664178fd517a8a543e04d95fb191951560c1d00382b9ba6fc6e614ac0238' 
  AND token = 'S3NG9HbaER6AfI6Gly7dpy+XlqAW7suDE6EExFX5VY4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00130

JSON explain

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