Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d66aff3dbe888f607429cefed7fc8cca934ea1f908f748d43526b277ba4be69' 
  AND token = 'lyLzKtpfPC6KHKhd/aQDtebHvFQGy6dSk6q+2FNn7Mw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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