Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00e1cb6bffb1f9786b186aa9939500c2b7a9b175649c3b936fb914b41a47c441' 
  AND token = 'jSue1cbKU/BVoaic6juO00HTaJJokpFjhVQ9w3ximyA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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