Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e00bcfc4f249a4db5fb6c016259bb2fc8644bde29733550987df25933c37610e' 
  AND token = 'KnRIqRYqhCcbfz1qkxMIrenqg1Q2NwBcL4lkaBih8zw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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