Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f32e8135b6548077edc65d2019c8af93f1ce49033e4c806b369d2dd8431df8c8' 
  AND token = 'Fh9NaWm5duKnLKhsg5JDrdC+NF9HQSySnKNCtjJSS7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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