Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10ee869dd92f40c3a321cd5d6766b447d9ceacea3189935b3ecc1afeaf2bfab4' 
  AND token = 'C0VwpFBq9aF4NTi1jSaxwEBUNEPca4O/iGDBmKquIBI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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