Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd2c3277c5bcaffa2073fe8fb122622e3d1b287c18391ac4af0cae9e3de3914d' 
  AND token = 'vo7dBXP7obQHymGXhqgfVYKIycOULQAE3v6GJjxD8A8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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