Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '128d52c5d54aaa9b39893d1bb9b3f50b2803043843a1aa17265d2132ec4915fd' 
  AND token = 'stlG0Iq/DcYT82sewcCNtlVNQVf+VUohH9pYhVrj1lI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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