Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1825cf9ff535a421bbe973fce306eb710d5195812819a7bbf409798df6a3177d' 
  AND token = 'ByeGeYErwROrBCFfqDrIB4PixRLiV18Y9KqzG0sdF1I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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