Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f078e5f1138eae8e0ed2ed8fd5f7e52e398be390a89f381befa939518da60853' 
  AND token = 'RIUvxX7ha4LX3x27E6nxMMiPWCQOYP0LQyXraG+G5Bs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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