Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6bbe7cac78c7db08908bcfa1f5acef548a03495fbfe6eaa675b02ba2b9475edb' 
  AND token = 'xzJopYeiiQSz5gN1TG87QhKkURHYFe8wP5MQCmQ1cLE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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