Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4136ac1142c5a7001befb2cbb64bb357fb004f87b387dd0128cf7e9b4bc59377' 
  AND token = 'M47wSe1VsSP7gHz631s7HNMWq4CjMaK+wQ860PwYEIk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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