Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edf87792c17ae1d4cb19df2c69cce196963de929352764233c737941f0a35c74' 
  AND token = 'WPL0BcIsrmRZnIY8zLnedNXfxn0HEhd+17jZaYl3P+c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00140

JSON explain

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