Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '662ca4b486fcbdffa03a094fa618c012a6dad6b0b961ffee66c38e39a06f076e' 
  AND token = 'zN0s2p6q2kW0qgfBey6ObP94eiLxNCuC8Gnt9gYhntk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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