Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0964e0520715e3ae7fd369a532f5a484faa5c372b431cc43c9adbc78d9bce052' 
  AND token = 'hyhMpTUpIKA6so67Toui/xRHMWgbP+ckFNV8Qd2m240=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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