Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd64368a5a76b2b88c440b82d89fb86d83133fe42bd427ada3f97cc18607c53eb' 
  AND token = '2LXZtotVs3lzxcuML7+HB7dLtBZxMLKeCzGMS8x9CAc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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