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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95bf3e0319dc71e83d3dc465dd73f46ecfbed4b31ec13f8b53e8f553825ab028' 
  AND token = '6Ymvjh6EUPANZOu5Wh84faNG+B50qYyL6ISDOF9DUC0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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