Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '37f09805a9fadf611217e7fbfa92c005205857eebc3e364dfdee03c085870a20' 
  AND token = 'qq07u0cY2CwPnn2POySzwQ0Go0VigUZqDS74B6YNLNI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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