Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '63dfbd993e462632166cbefe053bd6c0289d6fb3110227dc501e7d5ff138767f' 
  AND token = 'iABOAwQGUZNCae2H6udZJqEBUmHqeAzjHaRjoLNkLUk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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