Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e482855b86767336d8c9a11efd5e76e2e504a0c3243f08133c560ef0e651ac4' 
  AND token = 'LZXglzuQpckdcYmvWNiFxjGVL+pfL1t5sdB45eOmkDU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00068

JSON explain

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