Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '33c32bd7375b17c389e1961858e86a5b251241ab78e99f0af1cafbdc77018840' 
  AND token = '1IcWDzCxTmrbQZbc/C7tbaIBf6ZGN98PTD8ic6c7Tcc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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