Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f61349c65006cd26e3a885531809c2078b75a0bb063bea20fc491477d4467d7d' 
  AND token = 'M074uCkJ3EeqcCzGuum6oMLN+K38ScohMH+Cu7Asp8Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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