Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44e563c49d40a828c5d452b5b527d34fa73432c2837ae925ce330227c05d55e8' 
  AND token = 'VBUbAdS0h/wQ5lLNWcsPMTU/wM2/vQC5m6h8N8yGRq8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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