Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '825d80df627bb37cab3b6f99583c7810b68be44fc5ff46e90862aff01cde7b01' 
  AND token = 'K/eS+KEGMs8JPjX/O5jKfSJ83bGoH60AS1hRtg9MQp0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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