Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4d3440caaf5acf3e06cd06e2c63148e6f172ddddb43a710c7810f83aaaf767e8' 
  AND token = 'TFTgMM3giXF0hsUTfNmQWrweotoqSZn31h3I4omYhkw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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