Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e2181ac5c20991d7435130ae37accdbd1920580587a57042944fe3535610c5b9' 
  AND token = 'gTD3Q72g0JVVAtUscNLiMbfkfykOXo+S+TUvtlKCqvo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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