Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72bbb5ff8dcdd369bba117354122c4a97c0d6003c535bf34c43a56deddc9c2e4' 
  AND token = 'RjuNnkHcIOPpnxkX7+BQ62G2d8e2/K2XsPfkn00FeUo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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