Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67705a967444d8dd3d6235aab1575392e06f2ee1b47295423ecce92e511e46fb' 
  AND token = 'aJZxnhQDgvQy+xaCYEmF2HMxEeVDUt2Wh6ppbW6A0UQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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