Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fde9dcae52c7e6fd57e19dde98b27ae32e35277d94bc97718a66204d52f9e9e3' 
  AND token = 't2PNydzAHBenpm+KJW2Rit+YapkMF4q9Sbb+YWCIx/w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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