Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22495781b7debc28bf17a66277fe33149eb205c13cb39b65581c0b5a787828e5' 
  AND token = '4h22r5QF9QdcUG4apC+85JHq0iCtmXLXYuxbuwKZ2PU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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