Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'db2941539608f66b318244745169bca7e286fc2c5766902bfc1889ee5d8c15f9' 
  AND token = 'xWeefrBv6hRtIxc6EEnVnDnAy2TkQlk4KWGSOEAwe24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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