Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2fc0c70e60bbe73945d0e4f041e8840738e37ac8f44fc3ef1660510a92b83dc3' 
  AND token = '7SRyjoFbivsTHL+YEfTz+NMua33HHMZoSzq9zc+PFe4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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