Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60deb55d64d08fde51063ebbd2f5aa08ddf83d37e4c72f70b92f0db6f820e590' 
  AND token = 'b9NTUWUciIAuN2GYRC7XYRfe2qnJwjZgenTSMVjfzFk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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