Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e359b82280657d35ca42a5568567e8eeb7484308367e9e220a569d63e424202d' 
  AND token = 'tT4ik5EBgYDq9uLjbHzKVOFAP3KoK0ZZ7ftY1khOMoQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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