Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0aafd69890fb3801ea9b3b743c97a1521d652cc65eddbcc36bb300dfc5937c25' 
  AND token = '1Q6MwnJnW2iQlIW0rGibgPV3KGUgmHREGEMJ0yfbqk0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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