Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '35fc57c1bca60c304c8f79f5af93d1a35ea3a4006ac946484239510660becc11' 
  AND token = 'KT0xRon7FAnePt8SbpkP9kSGdDFHlqwJ9fnqHa4NwWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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