Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22cf2675fda1ce93e982fb5a6387c32887cc32abc7e6447a0d480b4120754137' 
  AND token = 'zv/0cpJP9YfK+1p5YE4SmqkvH1iMZXSwlcoI50193sI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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