Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '37a25d1898b4f83acfe4437fe15b850fa706ed75733bac5bd914d1b2c626e35d' 
  AND token = 'cfISj9d+rhemw8ffVDpSXOhctGF3b/RW7neNn5xdFgM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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