Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f29ab66402fb84cbcf841da50b6092239f83e2c0c96ff0ef4878a5fba28f85f3' 
  AND token = 'I/y3mwqjNl8JVfmeajsLNOXvMltZdR1JHl0E+gOh+N8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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