Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a527e32d02e97ae193ee5009911ea9229a1bb3ebb7bbcf40d5767832baba8f1' 
  AND token = '7GwZpzauAhIqUcS7t5d8p91Ox1+PXzF1K2Y4S48MfFY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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