Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba24ba86edfe35dc030e020d53772a11407c453aa10b32a828630fb7eb828e64' 
  AND token = 'YFBgaPWvDEDnJrz6ksUlsWouXgOeBunjwwLymca078c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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