Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '369ec12ebce1a9729dff884d8a8ff93d43b8e3686b7e416acd61521307d98dd2' 
  AND token = 'YxQyFRq4Hhtz1O8QRBANWRcXI1Upkp18aATPT5E+5fY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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