Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '385d519bd2f6470897477fcc0a1d3683b77bddbb4ea63f175bae60a600c6eb2b' 
  AND token = 'JaG2+J+EUABarGwH+xamzmN0V5nrRSQWTwYATeXk/AE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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