Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9f4d0ddb4719ac386a7dff01d1a11790d52da63bdc84450f79653ecb8755e31d' 
  AND token = 'W/urAl7y1QAipzR05tjI85HpGUGtIERBUxyAY8ZiLok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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