Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ff3881635b533400cdb784723a86468a7e49a5824e01e7f843f7031a0cbb6866' 
  AND token = 'o6ir7mC0isSY0ATQTyy0JLc5DdLNZU4RfmxA55ibecU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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