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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f513dd34e72f2da35691fd65a65dadc48f4f9c8ee4f30bb3d56b360907832ba' 
  AND token = 'Y1NnVT54hxDKFrm0l2wMKCcwF8RRfDzd+oT088Im2jk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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