Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edd6720c3cfb18ae93dccc875f0723436709d32a5f87048c1c4167adbea359df' 
  AND token = 'yJ1C3z1bYyZY8oKgNEhWKpIE0kh0b27diHlvIE1m9b0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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