Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4e0921a659b812eab8784031aaf25902c74f87b1689ab1833518a1d47c1400b5' 
  AND token = 'ho3MUY0EH7g5Sa9sKisuf1UKNOuT6epAIc5rZ6aizUg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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