Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fc44e54df08a7afab29f25e48cdda672cea46974aa29d34bc4d10c6e38c8119b' 
  AND token = '5ME09ih03Z23FGH+ZR6p551rOfZsV3UbW/zJiO1ktDI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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