Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88554193929c3cb79e51aaabc6f8643bce28edce9aa7287bf426ea7297d8f98f' 
  AND token = 'dMB14M8vG8ML/WPz2UTHIesP/2i5yxyZBJR1JRzGZfc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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