Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95d543f5167eebe3912b5a880a42dd962d733bfd6c7154eec3e6b66aa91c0dd5' 
  AND token = '8gaHbAXMNPph73MGJB9KFkaENejuN2Vwn/y5SYqNFc8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00077

JSON explain

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